21045764

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{397}}^1\times {\mathrm{457}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 38279640

約数和(自身を除く): 17233876

約数列:

[1, 2, 4, 29, 58, 116, 397, 457, 794, 914, 1588, 1828, 11513, 13253, 23026, 26506, 46052, 53012, 181429, 362858, 725716, 5261441, 10522882, 21045764]

約数ペア:

[(1, 21045764), (2, 10522882), (4, 5261441), (29, 725716), (58, 362858), (116, 181429), (397, 53012), (457, 46052), (794, 26506), (914, 23026), (1588, 13253), (1828, 11513)]