21715888

素因数分解:

$2^4\times {\mathrm{113}}^1\times {\mathrm{12011}}^1$

素因数の和:12132

約数の個数: 20

約数和(自身を含む): 42450408

約数和(自身を除く): 20734520

約数列:

[1, 2, 4, 8, 16, 113, 226, 452, 904, 1808, 12011, 24022, 48044, 96088, 192176, 1357243, 2714486, 5428972, 10857944, 21715888]

約数ペア:

[(1, 21715888), (2, 10857944), (4, 5428972), (8, 2714486), (16, 1357243), (113, 192176), (226, 96088), (452, 48044), (904, 24022), (1808, 12011)]