21209760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:148

約数の個数: 288

約数和(自身を含む): 85857408

約数和(自身を除く): 64647648

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 22, 24, 26, 30, 32, 33, 36, 39, 40, 44, 45, 48, 52, 55, 60, 65, 66, 72, 78, 80, 88, 90, 96, 99, 103, 104, 110, 117, 120, 130, 132, 143, 144, 156, 160, 165, 176, 180, 195, 198, 206, 208, 220, 234, 240, 260, 264, 286, 288, 309, 312, 330, 352, 360, 390, 396, 412, 416, 429, 440, 468, 480, 495, 515, 520, 528, 572, 585, 618, 624, 660, 715, 720, 780, 792, 824, 858, 880, 927, 936, 990, 1030, 1040, 1056, 1133, 1144, 1170, 1236, 1248, 1287, 1320, 1339, 1430, 1440, 1545, 1560, 1584, 1648, 1716, 1760, 1854, 1872, 1980, 2060, 2080, 2145, 2266, 2288, 2340, 2472, 2574, 2640, 2678, 2860, 3090, 3120, 3168, 3296, 3399, 3432, 3708, 3744, 3960, 4017, 4120, 4290, 4532, 4576, 4635, 4680, 4944, 5148, 5280, 5356, 5665, 5720, 6180, 6240, 6435, 6695, 6798, 6864, 7416, 7920, 8034, 8240, 8580, 9064, 9270, 9360, 9888, 10197, 10296, 10712, 11330, 11440, 12051, 12360, 12870, 13390, 13596, 13728, 14729, 14832, 15840, 16068, 16480, 16995, 17160, 18128, 18540, 18720, 20085, 20394, 20592, 21424, 22660, 22880, 24102, 24720, 25740, 26780, 27192, 29458, 29664, 32136, 33990, 34320, 36256, 37080, 40170, 40788, 41184, 42848, 44187, 45320, 48204, 49440, 50985, 51480, 53560, 54384, 58916, 60255, 64272, 67980, 68640, 73645, 74160, 80340, 81576, 88374, 90640, 96408, 101970, 102960, 107120, 108768, 117832, 120510, 128544, 132561, 135960, 147290, 148320, 160680, 163152, 176748, 181280, 192816, 203940, 205920, 214240, 220935, 235664, 241020, 265122, 271920, 294580, 321360, 326304, 353496, 385632, 407880, 441870, 471328, 482040, 530244, 543840, 589160, 642720, 662805, 706992, 815760, 883740, 964080, 1060488, 1178320, 1325610, 1413984, 1631520, 1767480, 1928160, 2120976, 2356640, 2651220, 3534960, 4241952, 5302440, 7069920, 10604880, 21209760]

約数ペア:

[(1, 21209760), (2, 10604880), (3, 7069920), (4, 5302440), (5, 4241952), (6, 3534960), (8, 2651220), (9, 2356640), (10, 2120976), (11, 1928160), (12, 1767480), (13, 1631520), (15, 1413984), (16, 1325610), (18, 1178320), (20, 1060488), (22, 964080), (24, 883740), (26, 815760), (30, 706992), (32, 662805), (33, 642720), (36, 589160), (39, 543840), (40, 530244), (44, 482040), (45, 471328), (48, 441870), (52, 407880), (55, 385632), (60, 353496), (65, 326304), (66, 321360), (72, 294580), (78, 271920), (80, 265122), (88, 241020), (90, 235664), (96, 220935), (99, 214240), (103, 205920), (104, 203940), (110, 192816), (117, 181280), (120, 176748), (130, 163152), (132, 160680), (143, 148320), (144, 147290), (156, 135960), (160, 132561), (165, 128544), (176, 120510), (180, 117832), (195, 108768), (198, 107120), (206, 102960), (208, 101970), (220, 96408), (234, 90640), (240, 88374), (260, 81576), (264, 80340), (286, 74160), (288, 73645), (309, 68640), (312, 67980), (330, 64272), (352, 60255), (360, 58916), (390, 54384), (396, 53560), (412, 51480), (416, 50985), (429, 49440), (440, 48204), (468, 45320), (480, 44187), (495, 42848), (515, 41184), (520, 40788), (528, 40170), (572, 37080), (585, 36256), (618, 34320), (624, 33990), (660, 32136), (715, 29664), (720, 29458), (780, 27192), (792, 26780), (824, 25740), (858, 24720), (880, 24102), (927, 22880), (936, 22660), (990, 21424), (1030, 20592), (1040, 20394), (1056, 20085), (1133, 18720), (1144, 18540), (1170, 18128), (1236, 17160), (1248, 16995), (1287, 16480), (1320, 16068), (1339, 15840), (1430, 14832), (1440, 14729), (1545, 13728), (1560, 13596), (1584, 13390), (1648, 12870), (1716, 12360), (1760, 12051), (1854, 11440), (1872, 11330), (1980, 10712), (2060, 10296), (2080, 10197), (2145, 9888), (2266, 9360), (2288, 9270), (2340, 9064), (2472, 8580), (2574, 8240), (2640, 8034), (2678, 7920), (2860, 7416), (3090, 6864), (3120, 6798), (3168, 6695), (3296, 6435), (3399, 6240), (3432, 6180), (3708, 5720), (3744, 5665), (3960, 5356), (4017, 5280), (4120, 5148), (4290, 4944), (4532, 4680), (4576, 4635)]