21347520

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:658

約数の個数: 112

約数和(自身を含む): 69726048

約数和(自身を除く): 48378528

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 37, 40, 48, 60, 64, 74, 80, 96, 111, 120, 148, 160, 185, 192, 222, 240, 296, 320, 370, 444, 480, 555, 592, 601, 740, 888, 960, 1110, 1184, 1202, 1480, 1776, 1803, 2220, 2368, 2404, 2960, 3005, 3552, 3606, 4440, 4808, 5920, 6010, 7104, 7212, 8880, 9015, 9616, 11840, 12020, 14424, 17760, 18030, 19232, 22237, 24040, 28848, 35520, 36060, 38464, 44474, 48080, 57696, 66711, 72120, 88948, 96160, 111185, 115392, 133422, 144240, 177896, 192320, 222370, 266844, 288480, 333555, 355792, 444740, 533688, 576960, 667110, 711584, 889480, 1067376, 1334220, 1423168, 1778960, 2134752, 2668440, 3557920, 4269504, 5336880, 7115840, 10673760, 21347520]

約数ペア:

[(1, 21347520), (2, 10673760), (3, 7115840), (4, 5336880), (5, 4269504), (6, 3557920), (8, 2668440), (10, 2134752), (12, 1778960), (15, 1423168), (16, 1334220), (20, 1067376), (24, 889480), (30, 711584), (32, 667110), (37, 576960), (40, 533688), (48, 444740), (60, 355792), (64, 333555), (74, 288480), (80, 266844), (96, 222370), (111, 192320), (120, 177896), (148, 144240), (160, 133422), (185, 115392), (192, 111185), (222, 96160), (240, 88948), (296, 72120), (320, 66711), (370, 57696), (444, 48080), (480, 44474), (555, 38464), (592, 36060), (601, 35520), (740, 28848), (888, 24040), (960, 22237), (1110, 19232), (1184, 18030), (1202, 17760), (1480, 14424), (1776, 12020), (1803, 11840), (2220, 9616), (2368, 9015), (2404, 8880), (2960, 7212), (3005, 7104), (3552, 6010), (3606, 5920), (4440, 4808)]