20217990745

素因数分解:

$5^1\times {\mathrm{281}}^1\times {\mathrm{1279}}^1\times {\mathrm{11251}}^1$

素因数の和:12816

約数の個数: 16

約数和(自身を含む): 24369131520

約数和(自身を除く): 4151140775

約数列:

[1, 5, 281, 1279, 1405, 6395, 11251, 56255, 359399, 1796995, 3161531, 14390029, 15807655, 71950145, 4043598149, 20217990745]

約数ペア:

[(1, 20217990745), (5, 4043598149), (281, 71950145), (1279, 15807655), (1405, 14390029), (6395, 3161531), (11251, 1796995), (56255, 359399)]