28698885

素因数分解:

$3^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{887}}^1$

素因数の和:1617

約数の個数: 24

約数和(自身を含む): 49870080

約数和(自身を除く): 21171195

約数列:

[1, 3, 5, 9, 15, 45, 719, 887, 2157, 2661, 3595, 4435, 6471, 7983, 10785, 13305, 32355, 39915, 637753, 1913259, 3188765, 5739777, 9566295, 28698885]

約数ペア:

[(1, 28698885), (3, 9566295), (5, 5739777), (9, 3188765), (15, 1913259), (45, 637753), (719, 39915), (887, 32355), (2157, 13305), (2661, 10785), (3595, 7983), (4435, 6471)]