21684960

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2$

素因数の和:106

約数の個数: 216

約数和(自身を含む): 82967976

約数和(自身を除く): 61283016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 37, 40, 44, 45, 48, 55, 60, 66, 72, 74, 80, 88, 90, 96, 99, 110, 111, 120, 132, 144, 148, 160, 165, 176, 180, 185, 198, 220, 222, 240, 264, 288, 296, 330, 333, 352, 360, 370, 396, 407, 440, 444, 480, 495, 528, 555, 592, 660, 666, 720, 740, 792, 814, 880, 888, 990, 1056, 1110, 1184, 1221, 1320, 1332, 1369, 1440, 1480, 1584, 1628, 1665, 1760, 1776, 1980, 2035, 2220, 2442, 2640, 2664, 2738, 2960, 3168, 3256, 3330, 3552, 3663, 3960, 4070, 4107, 4440, 4884, 5280, 5328, 5476, 5920, 6105, 6512, 6660, 6845, 7326, 7920, 8140, 8214, 8880, 9768, 10656, 10952, 12210, 12321, 13024, 13320, 13690, 14652, 15059, 15840, 16280, 16428, 17760, 18315, 19536, 20535, 21904, 24420, 24642, 26640, 27380, 29304, 30118, 32560, 32856, 36630, 39072, 41070, 43808, 45177, 48840, 49284, 53280, 54760, 58608, 60236, 61605, 65120, 65712, 73260, 75295, 82140, 90354, 97680, 98568, 109520, 117216, 120472, 123210, 131424, 135531, 146520, 150590, 164280, 180708, 195360, 197136, 219040, 225885, 240944, 246420, 271062, 293040, 301180, 328560, 361416, 394272, 451770, 481888, 492840, 542124, 586080, 602360, 657120, 677655, 722832, 903540, 985680, 1084248, 1204720, 1355310, 1445664, 1807080, 1971360, 2168496, 2409440, 2710620, 3614160, 4336992, 5421240, 7228320, 10842480, 21684960]

約数ペア:

[(1, 21684960), (2, 10842480), (3, 7228320), (4, 5421240), (5, 4336992), (6, 3614160), (8, 2710620), (9, 2409440), (10, 2168496), (11, 1971360), (12, 1807080), (15, 1445664), (16, 1355310), (18, 1204720), (20, 1084248), (22, 985680), (24, 903540), (30, 722832), (32, 677655), (33, 657120), (36, 602360), (37, 586080), (40, 542124), (44, 492840), (45, 481888), (48, 451770), (55, 394272), (60, 361416), (66, 328560), (72, 301180), (74, 293040), (80, 271062), (88, 246420), (90, 240944), (96, 225885), (99, 219040), (110, 197136), (111, 195360), (120, 180708), (132, 164280), (144, 150590), (148, 146520), (160, 135531), (165, 131424), (176, 123210), (180, 120472), (185, 117216), (198, 109520), (220, 98568), (222, 97680), (240, 90354), (264, 82140), (288, 75295), (296, 73260), (330, 65712), (333, 65120), (352, 61605), (360, 60236), (370, 58608), (396, 54760), (407, 53280), (440, 49284), (444, 48840), (480, 45177), (495, 43808), (528, 41070), (555, 39072), (592, 36630), (660, 32856), (666, 32560), (720, 30118), (740, 29304), (792, 27380), (814, 26640), (880, 24642), (888, 24420), (990, 21904), (1056, 20535), (1110, 19536), (1184, 18315), (1221, 17760), (1320, 16428), (1332, 16280), (1369, 15840), (1440, 15059), (1480, 14652), (1584, 13690), (1628, 13320), (1665, 13024), (1760, 12321), (1776, 12210), (1980, 10952), (2035, 10656), (2220, 9768), (2442, 8880), (2640, 8214), (2664, 8140), (2738, 7920), (2960, 7326), (3168, 6845), (3256, 6660), (3330, 6512), (3552, 6105), (3663, 5920), (3960, 5476), (4070, 5328), (4107, 5280), (4440, 4884)]