20456685

素因数分解:

$3^3\times 5^1\times {\mathrm{151531}}^1$

素因数の和:151545

約数の個数: 16

約数和(自身を含む): 36367680

約数和(自身を除く): 15910995

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 151531, 454593, 757655, 1363779, 2272965, 4091337, 6818895, 20456685]

約数ペア:

[(1, 20456685), (3, 6818895), (5, 4091337), (9, 2272965), (15, 1363779), (27, 757655), (45, 454593), (135, 151531)]