18701978

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{599}}^1$

素因数の和:901

約数の個数: 16

約数和(自身を含む): 28641600

約数和(自身を除く): 9939622

約数列:

[1, 2, 67, 134, 233, 466, 599, 1198, 15611, 31222, 40133, 80266, 139567, 279134, 9350989, 18701978]

約数ペア:

[(1, 18701978), (2, 9350989), (67, 279134), (134, 139567), (233, 80266), (466, 40133), (599, 31222), (1198, 15611)]