19971395913

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15590473}}^1$

素因数の和:15590544

約数の個数: 16

約数和(自身を含む): 30931500416

約数和(自身を除く): 10960104503

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 15590473, 46771419, 109133311, 327399933, 951018853, 2853056559, 6657131971, 19971395913]

約数ペア:

[(1, 19971395913), (3, 6657131971), (7, 2853056559), (21, 951018853), (61, 327399933), (183, 109133311), (427, 46771419), (1281, 15590473)]