19780537

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{1471}}^1$

素因数の和:1608

約数の個数: 16

約数和(自身を含む): 24164352

約数和(自身を除く): 4383815

約数列:

[1, 7, 17, 113, 119, 791, 1471, 1921, 10297, 13447, 25007, 166223, 175049, 1163561, 2825791, 19780537]

約数ペア:

[(1, 19780537), (7, 2825791), (17, 1163561), (113, 175049), (119, 166223), (791, 25007), (1471, 13447), (1921, 10297)]