18955497

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 28174720

約数和(自身を除く): 9219223

約数列:

[1, 3, 11, 33, 79, 121, 237, 363, 661, 869, 1983, 2607, 7271, 9559, 21813, 28677, 52219, 79981, 156657, 239943, 574409, 1723227, 6318499, 18955497]

約数ペア:

[(1, 18955497), (3, 6318499), (11, 1723227), (33, 574409), (79, 239943), (121, 156657), (237, 79981), (363, 52219), (661, 28677), (869, 21813), (1983, 9559), (2607, 7271)]