20415696847

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{2178139}}^1$

素因数の和:2178262

約数の個数: 16

約数和(自身を含む): 25370974720

約数和(自身を除く): 4955277873

約数列:

[1, 7, 13, 91, 103, 721, 1339, 9373, 2178139, 15246973, 28315807, 198210649, 224348317, 1570438219, 2916528121, 20415696847]

約数ペア:

[(1, 20415696847), (7, 2916528121), (13, 1570438219), (91, 224348317), (103, 198210649), (721, 28315807), (1339, 15246973), (9373, 2178139)]