18305805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{557}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 33640704

約数和(自身を除く): 15334899

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 313, 557, 939, 1565, 1671, 2191, 2785, 3899, 4695, 6573, 8355, 10955, 11697, 19495, 32865, 58485, 174341, 523023, 871705, 1220387, 2615115, 3661161, 6101935, 18305805]

約数ペア:

[(1, 18305805), (3, 6101935), (5, 3661161), (7, 2615115), (15, 1220387), (21, 871705), (35, 523023), (105, 174341), (313, 58485), (557, 32865), (939, 19495), (1565, 11697), (1671, 10955), (2191, 8355), (2785, 6573), (3899, 4695)]