19995555

素因数分解:

$3^1\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1283}}^1$

素因数の和:2330

約数の個数: 16

約数和(自身を含む): 32048640

約数和(自身を除く): 12053085

約数列:

[1, 3, 5, 15, 1039, 1283, 3117, 3849, 5195, 6415, 15585, 19245, 1333037, 3999111, 6665185, 19995555]

約数ペア:

[(1, 19995555), (3, 6665185), (5, 3999111), (15, 1333037), (1039, 19245), (1283, 15585), (3117, 6415), (3849, 5195)]