21142900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12437}}^1$

素因数の和:12468

約数の個数: 36

約数和(自身を含む): 48582828

約数和(自身を除く): 27439928

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12437, 24874, 49748, 62185, 124370, 211429, 248740, 310925, 422858, 621850, 845716, 1057145, 1243700, 2114290, 4228580, 5285725, 10571450, 21142900]

約数ペア:

[(1, 21142900), (2, 10571450), (4, 5285725), (5, 4228580), (10, 2114290), (17, 1243700), (20, 1057145), (25, 845716), (34, 621850), (50, 422858), (68, 310925), (85, 248740), (100, 211429), (170, 124370), (340, 62185), (425, 49748), (850, 24874), (1700, 12437)]