21002416

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{24767}}^1$

素因数の和:24828

約数の個数: 20

約数和(自身を含む): 41461632

約数和(自身を除く): 20459216

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 848, 24767, 49534, 99068, 198136, 396272, 1312651, 2625302, 5250604, 10501208, 21002416]

約数ペア:

[(1, 21002416), (2, 10501208), (4, 5250604), (8, 2625302), (16, 1312651), (53, 396272), (106, 198136), (212, 99068), (424, 49534), (848, 24767)]