51021815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{25321}}^1$

素因数の和:25370

約数の個数: 16

約数和(自身を含む): 68065536

約数和(自身を除く): 17043721

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 25321, 126605, 329173, 784951, 1645865, 3924755, 10204363, 51021815]

約数ペア:

[(1, 51021815), (5, 10204363), (13, 3924755), (31, 1645865), (65, 784951), (155, 329173), (403, 126605), (2015, 25321)]