21585225

素因数分解:

$3^1\times 5^2\times {\mathrm{277}}^1\times {\mathrm{1039}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 35850880

約数和(自身を除く): 14265655

約数列:

[1, 3, 5, 15, 25, 75, 277, 831, 1039, 1385, 3117, 4155, 5195, 6925, 15585, 20775, 25975, 77925, 287803, 863409, 1439015, 4317045, 7195075, 21585225]

約数ペア:

[(1, 21585225), (3, 7195075), (5, 4317045), (15, 1439015), (25, 863409), (75, 287803), (277, 77925), (831, 25975), (1039, 20775), (1385, 15585), (3117, 6925), (4155, 5195)]