20553416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1847}}^1$

素因数の和:1973

約数の個数: 32

約数和(自身を含む): 41912640

約数和(自身を除く): 21359224

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 107, 214, 428, 856, 1391, 1847, 2782, 3694, 5564, 7388, 11128, 14776, 24011, 48022, 96044, 192088, 197629, 395258, 790516, 1581032, 2569177, 5138354, 10276708, 20553416]

約数ペア:

[(1, 20553416), (2, 10276708), (4, 5138354), (8, 2569177), (13, 1581032), (26, 790516), (52, 395258), (104, 197629), (107, 192088), (214, 96044), (428, 48022), (856, 24011), (1391, 14776), (1847, 11128), (2782, 7388), (3694, 5564)]