21876380

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6967}}^1$

素因数の和:7133

約数の個数: 24

約数和(自身を含む): 46239648

約数和(自身を除く): 24363268

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 6967, 13934, 27868, 34835, 69670, 139340, 1093819, 2187638, 4375276, 5469095, 10938190, 21876380]

約数ペア:

[(1, 21876380), (2, 10938190), (4, 5469095), (5, 4375276), (10, 2187638), (20, 1093819), (157, 139340), (314, 69670), (628, 34835), (785, 27868), (1570, 13934), (3140, 6967)]