21139432

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4201}}^1$

素因数の和:4261

約数の個数: 32

約数和(自身を含む): 43112520

約数和(自身を除く): 21973088

約数列:

[1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4201, 5032, 8402, 16804, 33608, 71417, 142834, 155437, 285668, 310874, 571336, 621748, 1243496, 2642429, 5284858, 10569716, 21139432]

約数ペア:

[(1, 21139432), (2, 10569716), (4, 5284858), (8, 2642429), (17, 1243496), (34, 621748), (37, 571336), (68, 310874), (74, 285668), (136, 155437), (148, 142834), (296, 71417), (629, 33608), (1258, 16804), (2516, 8402), (4201, 5032)]