21491160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{2267}}^1$

素因数の和:2360

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 43827240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2267, 2370, 3160, 4534, 4740, 6801, 9068, 9480, 11335, 13602, 18136, 22670, 27204, 34005, 45340, 54408, 68010, 90680, 136020, 179093, 272040, 358186, 537279, 716372, 895465, 1074558, 1432744, 1790930, 2149116, 2686395, 3581860, 4298232, 5372790, 7163720, 10745580, 21491160]

約数ペア:

[(1, 21491160), (2, 10745580), (3, 7163720), (4, 5372790), (5, 4298232), (6, 3581860), (8, 2686395), (10, 2149116), (12, 1790930), (15, 1432744), (20, 1074558), (24, 895465), (30, 716372), (40, 537279), (60, 358186), (79, 272040), (120, 179093), (158, 136020), (237, 90680), (316, 68010), (395, 54408), (474, 45340), (632, 34005), (790, 27204), (948, 22670), (1185, 18136), (1580, 13602), (1896, 11335), (2267, 9480), (2370, 9068), (3160, 6801), (4534, 4740)]