13306478857

素因数分解:

$7^4\times {\mathrm{23}}^1\times {\mathrm{240959}}^1$

素因数の和:241010

約数の個数: 20

約数和(自身を含む): 16198295040

約数和(自身を除く): 2891816183

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2401, 7889, 55223, 240959, 1686713, 5542057, 11806991, 38794399, 82648937, 271560793, 578542559, 1900925551, 13306478857]

約数ペア:

[(1, 13306478857), (7, 1900925551), (23, 578542559), (49, 271560793), (161, 82648937), (343, 38794399), (1127, 11806991), (2401, 5542057), (7889, 1686713), (55223, 240959)]