20065479

素因数分解:

$3^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{5279}}^1$

素因数の和:5470

約数の個数: 16

約数和(自身を含む): 30750720

約数和(自身を除く): 10685241

約数列:

[1, 3, 7, 21, 181, 543, 1267, 3801, 5279, 15837, 36953, 110859, 955499, 2866497, 6688493, 20065479]

約数ペア:

[(1, 20065479), (3, 6688493), (7, 2866497), (21, 955499), (181, 110859), (543, 36953), (1267, 15837), (3801, 5279)]