20217852

素因数分解:

$2^2\times 3^2\times {\mathrm{561607}}^1$

素因数の和:561617

約数の個数: 18

約数和(自身を含む): 51106328

約数和(自身を除く): 30888476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 561607, 1123214, 1684821, 2246428, 3369642, 5054463, 6739284, 10108926, 20217852]

約数ペア:

[(1, 20217852), (2, 10108926), (3, 6739284), (4, 5054463), (6, 3369642), (9, 2246428), (12, 1684821), (18, 1123214), (36, 561607)]