18243743

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{599}}^1$

素因数の和:854

約数の個数: 16

約数和(自身を含む): 22080000

約数和(自身を除く): 3836257

約数列:

[1, 7, 19, 133, 229, 599, 1603, 4193, 4351, 11381, 30457, 79667, 137171, 960197, 2606249, 18243743]

約数ペア:

[(1, 18243743), (7, 2606249), (19, 960197), (133, 137171), (229, 79667), (599, 30457), (1603, 11381), (4193, 4351)]