28812641

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{1409}}^1$

素因数の和:1457

約数の個数: 18

約数和(自身を含む): 34317990

約数和(自身を除く): 5505349

約数列:

[1, 11, 13, 121, 143, 169, 1409, 1573, 1859, 15499, 18317, 20449, 170489, 201487, 238121, 2216357, 2619331, 28812641]

約数ペア:

[(1, 28812641), (11, 2619331), (13, 2216357), (121, 238121), (143, 201487), (169, 170489), (1409, 20449), (1573, 18317), (1859, 15499)]