21852025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1041

約数の個数: 24

約数和(自身を含む): 29623104

約数和(自身を除く): 7771079

約数列:

[1, 5, 13, 25, 65, 71, 325, 355, 923, 947, 1775, 4615, 4735, 12311, 23075, 23675, 61555, 67237, 307775, 336185, 874081, 1680925, 4370405, 21852025]

約数ペア:

[(1, 21852025), (5, 4370405), (13, 1680925), (25, 874081), (65, 336185), (71, 307775), (325, 67237), (355, 61555), (923, 23675), (947, 23075), (1775, 12311), (4615, 4735)]