21408472

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24551}}^1$

素因数の和:24666

約数の個数: 16

約数和(自身を含む): 40510800

約数和(自身を除く): 19102328

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24551, 49102, 98204, 196408, 2676059, 5352118, 10704236, 21408472]

約数ペア:

[(1, 21408472), (2, 10704236), (4, 5352118), (8, 2676059), (109, 196408), (218, 98204), (436, 49102), (872, 24551)]