18438968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{121309}}^1$

素因数の和:121334

約数の個数: 16

約数和(自身を含む): 36393000

約数和(自身を除く): 17954032

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 121309, 242618, 485236, 970472, 2304871, 4609742, 9219484, 18438968]

約数ペア:

[(1, 18438968), (2, 9219484), (4, 4609742), (8, 2304871), (19, 970472), (38, 485236), (76, 242618), (152, 121309)]