20659971

素因数分解:

$3^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1\times {\mathrm{773}}^1$

素因数の和:986

約数の個数: 16

約数和(自身を含む): 28235520

約数和(自身を除く): 7575549

約数列:

[1, 3, 59, 151, 177, 453, 773, 2319, 8909, 26727, 45607, 116723, 136821, 350169, 6886657, 20659971]

約数ペア:

[(1, 20659971), (3, 6886657), (59, 350169), (151, 136821), (177, 116723), (453, 45607), (773, 26727), (2319, 8909)]