2223221

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2221}}^1$

素因数の和:2252

約数の個数: 16

約数和(自身を含む): 2986368

約数和(自身を除く): 763147

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 2221, 15547, 24431, 28873, 171017, 202111, 317603, 2223221]

約数ペア:

[(1, 2223221), (7, 317603), (11, 202111), (13, 171017), (77, 28873), (91, 24431), (143, 15547), (1001, 2221)]