19990305

素因数分解:

$3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1447}}^1$

素因数の和:1765

約数の個数: 24

約数和(自身を含む): 34786752

約数和(自身を除く): 14796447

約数列:

[1, 3, 5, 9, 15, 45, 307, 921, 1447, 1535, 2763, 4341, 4605, 7235, 13023, 13815, 21705, 65115, 444229, 1332687, 2221145, 3998061, 6663435, 19990305]

約数ペア:

[(1, 19990305), (3, 6663435), (5, 3998061), (9, 2221145), (15, 1332687), (45, 444229), (307, 65115), (921, 21705), (1447, 13815), (1535, 13023), (2763, 7235), (4341, 4605)]