12621115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{691}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 16392096

約数和(自身を除く): 3770981

約数列:

[1, 5, 13, 65, 281, 691, 1405, 3455, 3653, 8983, 18265, 44915, 194171, 970855, 2524223, 12621115]

約数ペア:

[(1, 12621115), (5, 2524223), (13, 970855), (65, 194171), (281, 44915), (691, 18265), (1405, 8983), (3455, 3653)]