18720898

素因数分解:

$2^1\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{1297}}^1$

素因数の和:2337

約数の個数: 16

約数和(自身を含む): 32148864

約数和(自身を除く): 13427966

約数列:

[1, 2, 7, 14, 1031, 1297, 2062, 2594, 7217, 9079, 14434, 18158, 1337207, 2674414, 9360449, 18720898]

約数ペア:

[(1, 18720898), (2, 9360449), (7, 2674414), (14, 1337207), (1031, 18158), (1297, 14434), (2062, 9079), (2594, 7217)]