21875025

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1109}}^1$

素因数の和:1385

約数の個数: 24

約数和(自身を含む): 36336960

約数和(自身を除く): 14461935

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1109, 1315, 3327, 3945, 5545, 6575, 16635, 19725, 27725, 83175, 291667, 875001, 1458335, 4375005, 7291675, 21875025]

約数ペア:

[(1, 21875025), (3, 7291675), (5, 4375005), (15, 1458335), (25, 875001), (75, 291667), (263, 83175), (789, 27725), (1109, 19725), (1315, 16635), (3327, 6575), (3945, 5545)]