21581216

素因数分解:

$2^5\times {\mathrm{769}}^1\times {\mathrm{877}}^1$

素因数の和:1656

約数の個数: 24

約数和(自身を含む): 42591780

約数和(自身を除く): 21010564

約数列:

[1, 2, 4, 8, 16, 32, 769, 877, 1538, 1754, 3076, 3508, 6152, 7016, 12304, 14032, 24608, 28064, 674413, 1348826, 2697652, 5395304, 10790608, 21581216]

約数ペア:

[(1, 21581216), (2, 10790608), (4, 5395304), (8, 2697652), (16, 1348826), (32, 674413), (769, 28064), (877, 24608), (1538, 14032), (1754, 12304), (3076, 7016), (3508, 6152)]