18751555

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{97}}^1$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 24314976

約数和(自身を除く): 5563421

約数列:

[1, 5, 23, 41, 97, 115, 205, 485, 943, 1681, 2231, 3977, 4715, 8405, 11155, 19885, 38663, 91471, 163057, 193315, 457355, 815285, 3750311, 18751555]

約数ペア:

[(1, 18751555), (5, 3750311), (23, 815285), (41, 457355), (97, 193315), (115, 163057), (205, 91471), (485, 38663), (943, 19885), (1681, 11155), (2231, 8405), (3977, 4715)]