19864229

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{2411}}^1$

素因数の和:2536

約数の個数: 16

約数和(自身を含む): 25007616

約数和(自身を除く): 5143387

約数列:

[1, 7, 11, 77, 107, 749, 1177, 2411, 8239, 16877, 26521, 185647, 257977, 1805839, 2837747, 19864229]

約数ペア:

[(1, 19864229), (7, 2837747), (11, 1805839), (77, 257977), (107, 185647), (749, 26521), (1177, 16877), (2411, 8239)]