20380017

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{6427}}^1$

素因数の和:6588

約数の個数: 16

約数和(自身を含む): 31265792

約数和(自身を除く): 10885775

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 6427, 19281, 44989, 134967, 970477, 2911431, 6793339, 20380017]

約数ペア:

[(1, 20380017), (3, 6793339), (7, 2911431), (21, 970477), (151, 134967), (453, 44989), (1057, 19281), (3171, 6427)]