21157561105

素因数分解:

$5^1\times {\mathrm{227}}^1\times {\mathrm{2713}}^1\times {\mathrm{6871}}^1$

素因数の和:9816

約数の個数: 16

約数和(自身を含む): 25514031744

約数和(自身を除く): 4356470639

約数列:

[1, 5, 227, 1135, 2713, 6871, 13565, 34355, 615851, 1559717, 3079255, 7798585, 18641023, 93205115, 4231512221, 21157561105]

約数ペア:

[(1, 21157561105), (5, 4231512221), (227, 93205115), (1135, 18641023), (2713, 7798585), (6871, 3079255), (13565, 1559717), (34355, 615851)]