21143954

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47837}}^1$

素因数の和:47869

約数の個数: 16

約数和(自身を含む): 36165528

約数和(自身を除く): 15021574

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 47837, 95674, 621881, 813229, 1243762, 1626458, 10571977, 21143954]

約数ペア:

[(1, 21143954), (2, 10571977), (13, 1626458), (17, 1243762), (26, 813229), (34, 621881), (221, 95674), (442, 47837)]