18191511

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1747}}^1$

素因数の和:1855

約数の個数: 24

約数和(自身を含む): 28632240

約数和(自身を除く): 10440729

約数列:

[1, 3, 9, 13, 39, 89, 117, 267, 801, 1157, 1747, 3471, 5241, 10413, 15723, 22711, 68133, 155483, 204399, 466449, 1399347, 2021279, 6063837, 18191511]

約数ペア:

[(1, 18191511), (3, 6063837), (9, 2021279), (13, 1399347), (39, 466449), (89, 204399), (117, 155483), (267, 68133), (801, 22711), (1157, 15723), (1747, 10413), (3471, 5241)]