91572131

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{421}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 111995424

約数和(自身を除く): 20423293

約数列:

[1, 7, 23, 49, 161, 193, 421, 1127, 1351, 2947, 4439, 9457, 9683, 20629, 31073, 67781, 81253, 217511, 474467, 568771, 1868819, 3981397, 13081733, 91572131]

約数ペア:

[(1, 91572131), (7, 13081733), (23, 3981397), (49, 1868819), (161, 568771), (193, 474467), (421, 217511), (1127, 81253), (1351, 67781), (2947, 31073), (4439, 20629), (9457, 9683)]