18280017

素因数分解:

$3^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1621}}^1$

素因数の和:1813

約数の個数: 24

約数和(自身を含む): 30363840

約数和(自身を除く): 12083823

約数列:

[1, 3, 7, 9, 21, 63, 179, 537, 1253, 1611, 1621, 3759, 4863, 11277, 11347, 14589, 34041, 102123, 290159, 870477, 2031113, 2611431, 6093339, 18280017]

約数ペア:

[(1, 18280017), (3, 6093339), (7, 2611431), (9, 2031113), (21, 870477), (63, 290159), (179, 102123), (537, 34041), (1253, 14589), (1611, 11347), (1621, 11277), (3759, 4863)]