21911125

素因数分解:

$5^3\times {\mathrm{59}}^1\times {\mathrm{2971}}^1$

素因数の和:3045

約数の個数: 16

約数和(自身を含む): 27817920

約数和(自身を除く): 5906795

約数列:

[1, 5, 25, 59, 125, 295, 1475, 2971, 7375, 14855, 74275, 175289, 371375, 876445, 4382225, 21911125]

約数ペア:

[(1, 21911125), (5, 4382225), (25, 876445), (59, 371375), (125, 175289), (295, 74275), (1475, 14855), (2971, 7375)]