20492493

素因数分解:

$3^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{1873}}^1$

素因数の和:2404

約数の個数: 16

約数和(自身を含む): 31303296

約数和(自身を除く): 10810803

約数列:

[1, 3, 7, 21, 521, 1563, 1873, 3647, 5619, 10941, 13111, 39333, 975833, 2927499, 6830831, 20492493]

約数ペア:

[(1, 20492493), (3, 6830831), (7, 2927499), (21, 975833), (521, 39333), (1563, 13111), (1873, 10941), (3647, 5619)]