18911260

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{5801}}^1$

素因数の和:5973

約数の個数: 24

約数和(自身を含む): 39964176

約数和(自身を除く): 21052916

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 5801, 11602, 23204, 29005, 58010, 116020, 945563, 1891126, 3782252, 4727815, 9455630, 18911260]

約数ペア:

[(1, 18911260), (2, 9455630), (4, 4727815), (5, 3782252), (10, 1891126), (20, 945563), (163, 116020), (326, 58010), (652, 29005), (815, 23204), (1630, 11602), (3260, 5801)]