18921591

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3761}}^1$

素因数の和:3823

約数の個数: 24

約数和(自身を含む): 30126096

約数和(自身を除く): 11204505

約数列:

[1, 3, 9, 13, 39, 43, 117, 129, 387, 559, 1677, 3761, 5031, 11283, 33849, 48893, 146679, 161723, 440037, 485169, 1455507, 2102399, 6307197, 18921591]

約数ペア:

[(1, 18921591), (3, 6307197), (9, 2102399), (13, 1455507), (39, 485169), (43, 440037), (117, 161723), (129, 146679), (387, 48893), (559, 33849), (1677, 11283), (3761, 5031)]