20917408

素因数分解:

$2^5\times {\mathrm{127}}^1\times {\mathrm{5147}}^1$

素因数の和:5284

約数の個数: 24

約数和(自身を含む): 41513472

約数和(自身を除く): 20596064

約数列:

[1, 2, 4, 8, 16, 32, 127, 254, 508, 1016, 2032, 4064, 5147, 10294, 20588, 41176, 82352, 164704, 653669, 1307338, 2614676, 5229352, 10458704, 20917408]

約数ペア:

[(1, 20917408), (2, 10458704), (4, 5229352), (8, 2614676), (16, 1307338), (32, 653669), (127, 164704), (254, 82352), (508, 41176), (1016, 20588), (2032, 10294), (4064, 5147)]