21150025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1103}}^1$

素因数の和:1185

約数の個数: 24

約数和(自身を含む): 28748160

約数和(自身を除く): 7598135

約数列:

[1, 5, 13, 25, 59, 65, 295, 325, 767, 1103, 1475, 3835, 5515, 14339, 19175, 27575, 65077, 71695, 325385, 358475, 846001, 1626925, 4230005, 21150025]

約数ペア:

[(1, 21150025), (5, 4230005), (13, 1626925), (25, 846001), (59, 358475), (65, 325385), (295, 71695), (325, 65077), (767, 27575), (1103, 19175), (1475, 14339), (3835, 5515)]