18939557

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{9049}}^1$

素因数の和:9092

約数の個数: 16

約数和(自身を含む): 24326400

約数和(自身を除く): 5386843

約数列:

[1, 7, 13, 23, 91, 161, 299, 2093, 9049, 63343, 117637, 208127, 823459, 1456889, 2705651, 18939557]

約数ペア:

[(1, 18939557), (7, 2705651), (13, 1456889), (23, 823459), (91, 208127), (161, 117637), (299, 63343), (2093, 9049)]