21000306555

素因数分解:

$3^2\times 5^1\times {\mathrm{466673479}}^1$

素因数の和:466673490

約数の個数: 12

約数和(自身を含む): 36400531440

約数和(自身を除く): 15400224885

約数列:

[1, 3, 5, 9, 15, 45, 466673479, 1400020437, 2333367395, 4200061311, 7000102185, 21000306555]

約数ペア:

[(1, 21000306555), (3, 7000102185), (5, 4200061311), (9, 2333367395), (15, 1400020437), (45, 466673479)]