19927115

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{1091}}^1$

素因数の和:1390

約数の個数: 16

約数和(自身を含む): 25867296

約数和(自身を除く): 5940181

約数列:

[1, 5, 13, 65, 281, 1091, 1405, 3653, 5455, 14183, 18265, 70915, 306571, 1532855, 3985423, 19927115]

約数ペア:

[(1, 19927115), (5, 3985423), (13, 1532855), (65, 306571), (281, 70915), (1091, 18265), (1405, 14183), (3653, 5455)]