20151103

素因数分解:

$7^2\times {\mathrm{17}}^2\times {\mathrm{1423}}^1$

素因数の和:1471

約数の個数: 18

約数和(自身を含む): 24918576

約数和(自身を除く): 4767473

約数列:

[1, 7, 17, 49, 119, 289, 833, 1423, 2023, 9961, 14161, 24191, 69727, 169337, 411247, 1185359, 2878729, 20151103]

約数ペア:

[(1, 20151103), (7, 2878729), (17, 1185359), (49, 411247), (119, 169337), (289, 69727), (833, 24191), (1423, 14161), (2023, 9961)]