21851260

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{6959}}^1$

素因数の和:7125

約数の個数: 24

約数和(自身を含む): 46186560

約数和(自身を除く): 24335300

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 6959, 13918, 27836, 34795, 69590, 139180, 1092563, 2185126, 4370252, 5462815, 10925630, 21851260]

約数ペア:

[(1, 21851260), (2, 10925630), (4, 5462815), (5, 4370252), (10, 2185126), (20, 1092563), (157, 139180), (314, 69590), (628, 34795), (785, 27836), (1570, 13918), (3140, 6959)]