18735561

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2027}}^1$

素因数の和:2125

約数の個数: 24

約数和(自身を含む): 29527680

約数和(自身を除く): 10792119

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2027, 3081, 6081, 9243, 18243, 26351, 79053, 160133, 237159, 480399, 1441197, 2081729, 6245187, 18735561]

約数ペア:

[(1, 18735561), (3, 6245187), (9, 2081729), (13, 1441197), (39, 480399), (79, 237159), (117, 160133), (237, 79053), (711, 26351), (1027, 18243), (2027, 9243), (3081, 6081)]