2221945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:656

約数の個数: 16

約数和(自身を含む): 2954880

約数和(自身を除く): 732935

約数列:

[1, 5, 11, 55, 71, 355, 569, 781, 2845, 3905, 6259, 31295, 40399, 201995, 444389, 2221945]

約数ペア:

[(1, 2221945), (5, 444389), (11, 201995), (55, 40399), (71, 31295), (355, 6259), (569, 3905), (781, 2845)]