20731865

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53849}}^1$

素因数の和:53872

約数の個数: 16

約数和(自身を含む): 31017600

約数和(自身を除く): 10285735

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 53849, 269245, 376943, 592339, 1884715, 2961695, 4146373, 20731865]

約数ペア:

[(1, 20731865), (5, 4146373), (7, 2961695), (11, 1884715), (35, 592339), (55, 376943), (77, 269245), (385, 53849)]