9903985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21767}}^1$

素因数の和:21792

約数の個数: 16

約数和(自身を含む): 14628096

約数和(自身を除く): 4724111

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 21767, 108835, 152369, 282971, 761845, 1414855, 1980797, 9903985]

約数ペア:

[(1, 9903985), (5, 1980797), (7, 1414855), (13, 761845), (35, 282971), (65, 152369), (91, 108835), (455, 21767)]