21369920

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{467}}^1$

素因数の和:508

約数の個数: 112

約数和(自身を含む): 59911488

約数和(自身を除く): 38541568

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 130, 143, 160, 176, 208, 220, 260, 286, 320, 352, 416, 440, 467, 520, 572, 704, 715, 832, 880, 934, 1040, 1144, 1430, 1760, 1868, 2080, 2288, 2335, 2860, 3520, 3736, 4160, 4576, 4670, 5137, 5720, 6071, 7472, 9152, 9340, 10274, 11440, 12142, 14944, 18680, 20548, 22880, 24284, 25685, 29888, 30355, 37360, 41096, 45760, 48568, 51370, 60710, 66781, 74720, 82192, 97136, 102740, 121420, 133562, 149440, 164384, 194272, 205480, 242840, 267124, 328768, 333905, 388544, 410960, 485680, 534248, 667810, 821920, 971360, 1068496, 1335620, 1643840, 1942720, 2136992, 2671240, 4273984, 5342480, 10684960, 21369920]

約数ペア:

[(1, 21369920), (2, 10684960), (4, 5342480), (5, 4273984), (8, 2671240), (10, 2136992), (11, 1942720), (13, 1643840), (16, 1335620), (20, 1068496), (22, 971360), (26, 821920), (32, 667810), (40, 534248), (44, 485680), (52, 410960), (55, 388544), (64, 333905), (65, 328768), (80, 267124), (88, 242840), (104, 205480), (110, 194272), (130, 164384), (143, 149440), (160, 133562), (176, 121420), (208, 102740), (220, 97136), (260, 82192), (286, 74720), (320, 66781), (352, 60710), (416, 51370), (440, 48568), (467, 45760), (520, 41096), (572, 37360), (704, 30355), (715, 29888), (832, 25685), (880, 24284), (934, 22880), (1040, 20548), (1144, 18680), (1430, 14944), (1760, 12142), (1868, 11440), (2080, 10274), (2288, 9340), (2335, 9152), (2860, 7472), (3520, 6071), (3736, 5720), (4160, 5137), (4576, 4670)]