19745396

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1013}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 37818144

約数和(自身を除く): 18072748

約数列:

[1, 2, 4, 11, 22, 44, 443, 886, 1013, 1772, 2026, 4052, 4873, 9746, 11143, 19492, 22286, 44572, 448759, 897518, 1795036, 4936349, 9872698, 19745396]

約数ペア:

[(1, 19745396), (2, 9872698), (4, 4936349), (11, 1795036), (22, 897518), (44, 448759), (443, 44572), (886, 22286), (1013, 19492), (1772, 11143), (2026, 9746), (4052, 4873)]