18726428

素因数分解:

$2^2\times 7^3\times {\mathrm{13649}}^1$

素因数の和:13674

約数の個数: 24

約数和(自身を含む): 38220000

約数和(自身を除く): 19493572

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 343, 686, 1372, 13649, 27298, 54596, 95543, 191086, 382172, 668801, 1337602, 2675204, 4681607, 9363214, 18726428]

約数ペア:

[(1, 18726428), (2, 9363214), (4, 4681607), (7, 2675204), (14, 1337602), (28, 668801), (49, 382172), (98, 191086), (196, 95543), (343, 54596), (686, 27298), (1372, 13649)]