18973731

素因数分解:

$3^1\times 7^3\times {\mathrm{18439}}^1$

素因数の和:18463

約数の個数: 16

約数和(自身を含む): 29504000

約数和(自身を除く): 10530269

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 18439, 55317, 129073, 387219, 903511, 2710533, 6324577, 18973731]

約数ペア:

[(1, 18973731), (3, 6324577), (7, 2710533), (21, 903511), (49, 387219), (147, 129073), (343, 55317), (1029, 18439)]