21196700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:411

約数の個数: 72

約数和(自身を含む): 53246592

約数和(自身を除く): 32049892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 107, 140, 175, 214, 283, 350, 428, 535, 566, 700, 749, 1070, 1132, 1415, 1498, 1981, 2140, 2675, 2830, 2996, 3745, 3962, 5350, 5660, 7075, 7490, 7924, 9905, 10700, 14150, 14980, 18725, 19810, 28300, 30281, 37450, 39620, 49525, 60562, 74900, 99050, 121124, 151405, 198100, 211967, 302810, 423934, 605620, 757025, 847868, 1059835, 1514050, 2119670, 3028100, 4239340, 5299175, 10598350, 21196700]

約数ペア:

[(1, 21196700), (2, 10598350), (4, 5299175), (5, 4239340), (7, 3028100), (10, 2119670), (14, 1514050), (20, 1059835), (25, 847868), (28, 757025), (35, 605620), (50, 423934), (70, 302810), (100, 211967), (107, 198100), (140, 151405), (175, 121124), (214, 99050), (283, 74900), (350, 60562), (428, 49525), (535, 39620), (566, 37450), (700, 30281), (749, 28300), (1070, 19810), (1132, 18725), (1415, 14980), (1498, 14150), (1981, 10700), (2140, 9905), (2675, 7924), (2830, 7490), (2996, 7075), (3745, 5660), (3962, 5350)]