19898255

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2861}}^1$

素因数の和:2986

約数の個数: 16

約数和(自身を含む): 25964064

約数和(自身を除く): 6065809

約数列:

[1, 5, 13, 65, 107, 535, 1391, 2861, 6955, 14305, 37193, 185965, 306127, 1530635, 3979651, 19898255]

約数ペア:

[(1, 19898255), (5, 3979651), (13, 1530635), (65, 306127), (107, 185965), (535, 37193), (1391, 14305), (2861, 6955)]