19995015

素因数分解:

$3^1\times 5^1\times {\mathrm{1123}}^1\times {\mathrm{1187}}^1$

素因数の和:2318

約数の個数: 16

約数和(自身を含む): 32047488

約数和(自身を除く): 12052473

約数列:

[1, 3, 5, 15, 1123, 1187, 3369, 3561, 5615, 5935, 16845, 17805, 1333001, 3999003, 6665005, 19995015]

約数ペア:

[(1, 19995015), (3, 6665005), (5, 3999003), (15, 1333001), (1123, 17805), (1187, 16845), (3369, 5935), (3561, 5615)]