20018529

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{23917}}^1$

素因数の和:23957

約数の個数: 16

約数和(自身を含む): 30615040

約数和(自身を除く): 10596511

約数列:

[1, 3, 9, 27, 31, 93, 279, 837, 23917, 71751, 215253, 645759, 741427, 2224281, 6672843, 20018529]

約数ペア:

[(1, 20018529), (3, 6672843), (9, 2224281), (27, 741427), (31, 645759), (93, 215253), (279, 71751), (837, 23917)]