21427305

素因数分解:

$3^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{1933}}^1$

素因数の和:2680

約数の個数: 16

約数和(自身を含む): 34347840

約数和(自身を除く): 12920535

約数列:

[1, 3, 5, 15, 739, 1933, 2217, 3695, 5799, 9665, 11085, 28995, 1428487, 4285461, 7142435, 21427305]

約数ペア:

[(1, 21427305), (3, 7142435), (5, 4285461), (15, 1428487), (739, 28995), (1933, 11085), (2217, 9665), (3695, 5799)]