243009

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:117

約数の個数: 24

約数和(自身を含む): 396032

約数和(自身を除く): 153023

約数列:

[1, 3, 9, 13, 31, 39, 67, 93, 117, 201, 279, 403, 603, 871, 1209, 2077, 2613, 3627, 6231, 7839, 18693, 27001, 81003, 243009]

約数ペア:

[(1, 243009), (3, 81003), (9, 27001), (13, 18693), (31, 7839), (39, 6231), (67, 3627), (93, 2613), (117, 2077), (201, 1209), (279, 871), (403, 603)]