11122111

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:343

約数の個数: 32

約数和(自身を含む): 15353856

約数和(自身を除く): 4231745

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 271, 287, 451, 533, 1001, 1897, 2981, 3157, 3523, 3731, 5863, 11111, 20867, 24661, 38753, 41041, 77777, 122221, 144443, 271271, 855547, 1011101, 1588873, 11122111]

約数ペア:

[(1, 11122111), (7, 1588873), (11, 1011101), (13, 855547), (41, 271271), (77, 144443), (91, 122221), (143, 77777), (271, 41041), (287, 38753), (451, 24661), (533, 20867), (1001, 11111), (1897, 5863), (2981, 3731), (3157, 3523)]