21856605

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23887}}^1$

素因数の和:23956

約数の個数: 16

約数和(自身を含む): 35545344

約数和(自身を除く): 13688739

約数列:

[1, 3, 5, 15, 61, 183, 305, 915, 23887, 71661, 119435, 358305, 1457107, 4371321, 7285535, 21856605]

約数ペア:

[(1, 21856605), (3, 7285535), (5, 4371321), (15, 1457107), (61, 358305), (183, 119435), (305, 71661), (915, 23887)]