18894771

素因数分解:

$3^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{1657}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 31382624

約数和(自身を除く): 12487853

約数列:

[1, 3, 7, 9, 21, 63, 181, 543, 1267, 1629, 1657, 3801, 4971, 11403, 11599, 14913, 34797, 104391, 299917, 899751, 2099419, 2699253, 6298257, 18894771]

約数ペア:

[(1, 18894771), (3, 6298257), (7, 2699253), (9, 2099419), (21, 899751), (63, 299917), (181, 104391), (543, 34797), (1267, 14913), (1629, 11599), (1657, 11403), (3801, 4971)]