20787056

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76423}}^1$

素因数の和:76448

約数の個数: 20

約数和(自身を含む): 42644592

約数和(自身を除く): 21857536

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76423, 152846, 305692, 611384, 1222768, 1299191, 2598382, 5196764, 10393528, 20787056]

約数ペア:

[(1, 20787056), (2, 10393528), (4, 5196764), (8, 2598382), (16, 1299191), (17, 1222768), (34, 611384), (68, 305692), (136, 152846), (272, 76423)]