19996005

素因数分解:

$3^1\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4259}}^1$

素因数の和:4580

約数の個数: 16

約数和(自身を含む): 32103360

約数和(自身を除く): 12107355

約数列:

[1, 3, 5, 15, 313, 939, 1565, 4259, 4695, 12777, 21295, 63885, 1333067, 3999201, 6665335, 19996005]

約数ペア:

[(1, 19996005), (3, 6665335), (5, 3999201), (15, 1333067), (313, 63885), (939, 21295), (1565, 12777), (4259, 4695)]