21313440

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:100

約数の個数: 216

約数和(自身を含む): 78633828

約数和(自身を除く): 57320388

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 32, 36, 38, 40, 41, 45, 48, 57, 60, 72, 76, 80, 82, 90, 95, 96, 114, 120, 123, 144, 152, 160, 164, 171, 180, 190, 205, 228, 240, 246, 285, 288, 304, 328, 342, 360, 361, 369, 380, 410, 456, 480, 492, 570, 608, 615, 656, 684, 720, 722, 738, 760, 779, 820, 855, 912, 984, 1083, 1140, 1230, 1312, 1368, 1440, 1444, 1476, 1520, 1558, 1640, 1710, 1805, 1824, 1845, 1968, 2166, 2280, 2337, 2460, 2736, 2888, 2952, 3040, 3116, 3249, 3280, 3420, 3610, 3690, 3895, 3936, 4332, 4560, 4674, 4920, 5415, 5472, 5776, 5904, 6232, 6498, 6560, 6840, 7011, 7220, 7380, 7790, 8664, 9120, 9348, 9840, 10830, 11552, 11685, 11808, 12464, 12996, 13680, 14022, 14440, 14760, 14801, 15580, 16245, 17328, 18696, 19680, 21660, 23370, 24928, 25992, 27360, 28044, 28880, 29520, 29602, 31160, 32490, 34656, 35055, 37392, 43320, 44403, 46740, 51984, 56088, 57760, 59040, 59204, 62320, 64980, 70110, 74005, 74784, 86640, 88806, 93480, 103968, 112176, 118408, 124640, 129960, 133209, 140220, 148010, 173280, 177612, 186960, 222015, 224352, 236816, 259920, 266418, 280440, 296020, 355224, 373920, 444030, 473632, 519840, 532836, 560880, 592040, 666045, 710448, 888060, 1065672, 1121760, 1184080, 1332090, 1420896, 1776120, 2131344, 2368160, 2664180, 3552240, 4262688, 5328360, 7104480, 10656720, 21313440]

約数ペア:

[(1, 21313440), (2, 10656720), (3, 7104480), (4, 5328360), (5, 4262688), (6, 3552240), (8, 2664180), (9, 2368160), (10, 2131344), (12, 1776120), (15, 1420896), (16, 1332090), (18, 1184080), (19, 1121760), (20, 1065672), (24, 888060), (30, 710448), (32, 666045), (36, 592040), (38, 560880), (40, 532836), (41, 519840), (45, 473632), (48, 444030), (57, 373920), (60, 355224), (72, 296020), (76, 280440), (80, 266418), (82, 259920), (90, 236816), (95, 224352), (96, 222015), (114, 186960), (120, 177612), (123, 173280), (144, 148010), (152, 140220), (160, 133209), (164, 129960), (171, 124640), (180, 118408), (190, 112176), (205, 103968), (228, 93480), (240, 88806), (246, 86640), (285, 74784), (288, 74005), (304, 70110), (328, 64980), (342, 62320), (360, 59204), (361, 59040), (369, 57760), (380, 56088), (410, 51984), (456, 46740), (480, 44403), (492, 43320), (570, 37392), (608, 35055), (615, 34656), (656, 32490), (684, 31160), (720, 29602), (722, 29520), (738, 28880), (760, 28044), (779, 27360), (820, 25992), (855, 24928), (912, 23370), (984, 21660), (1083, 19680), (1140, 18696), (1230, 17328), (1312, 16245), (1368, 15580), (1440, 14801), (1444, 14760), (1476, 14440), (1520, 14022), (1558, 13680), (1640, 12996), (1710, 12464), (1805, 11808), (1824, 11685), (1845, 11552), (1968, 10830), (2166, 9840), (2280, 9348), (2337, 9120), (2460, 8664), (2736, 7790), (2888, 7380), (2952, 7220), (3040, 7011), (3116, 6840), (3249, 6560), (3280, 6498), (3420, 6232), (3610, 5904), (3690, 5776), (3895, 5472), (3936, 5415), (4332, 4920), (4560, 4674)]