20566731

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{659}}^1$

素因数の和:866

約数の個数: 16

約数和(自身を含む): 28005120

約数和(自身を除く): 7438389

約数列:

[1, 3, 101, 103, 303, 309, 659, 1977, 10403, 31209, 66559, 67877, 199677, 203631, 6855577, 20566731]

約数ペア:

[(1, 20566731), (3, 6855577), (101, 203631), (103, 199677), (303, 67877), (309, 66559), (659, 31209), (1977, 10403)]