20619403

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1123}}^1$

素因数の和:1234

約数の個数: 16

約数和(自身を含む): 24530176

約数和(自身を除く): 3910773

約数列:

[1, 7, 43, 61, 301, 427, 1123, 2623, 7861, 18361, 48289, 68503, 338023, 479521, 2945629, 20619403]

約数ペア:

[(1, 20619403), (7, 2945629), (43, 479521), (61, 338023), (301, 68503), (427, 48289), (1123, 18361), (2623, 7861)]