21042915

素因数分解:

$3^1\times 5^1\times {\mathrm{241}}^1\times {\mathrm{5821}}^1$

素因数の和:6070

約数の個数: 16

約数和(自身を含む): 33814176

約数和(自身を除く): 12771261

約数列:

[1, 3, 5, 15, 241, 723, 1205, 3615, 5821, 17463, 29105, 87315, 1402861, 4208583, 7014305, 21042915]

約数ペア:

[(1, 21042915), (3, 7014305), (5, 4208583), (15, 1402861), (241, 87315), (723, 29105), (1205, 17463), (3615, 5821)]