20504961

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{18523}}^1$

素因数の和:18573

約数の個数: 16

約数和(自身を含む): 31120320

約数和(自身を除く): 10615359

約数列:

[1, 3, 9, 27, 41, 123, 369, 1107, 18523, 55569, 166707, 500121, 759443, 2278329, 6834987, 20504961]

約数ペア:

[(1, 20504961), (3, 6834987), (9, 2278329), (27, 759443), (41, 500121), (123, 166707), (369, 55569), (1107, 18523)]