20396421

素因数分解:

$3^3\times {\mathrm{409}}^1\times {\mathrm{1847}}^1$

素因数の和:2265

約数の個数: 16

約数和(自身を含む): 30307200

約数和(自身を除く): 9910779

約数列:

[1, 3, 9, 27, 409, 1227, 1847, 3681, 5541, 11043, 16623, 49869, 755423, 2266269, 6798807, 20396421]

約数ペア:

[(1, 20396421), (3, 6798807), (9, 2266269), (27, 755423), (409, 49869), (1227, 16623), (1847, 11043), (3681, 5541)]