18936009

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1013}}^1$

素因数の和:1117

約数の個数: 24

約数和(自身を含む): 28684032

約数和(自身を除く): 9748023

約数列:

[1, 3, 9, 31, 67, 93, 201, 279, 603, 1013, 2077, 3039, 6231, 9117, 18693, 31403, 67871, 94209, 203613, 282627, 610839, 2104001, 6312003, 18936009]

約数ペア:

[(1, 18936009), (3, 6312003), (9, 2104001), (31, 610839), (67, 282627), (93, 203613), (201, 94209), (279, 67871), (603, 31403), (1013, 18693), (2077, 9117), (3039, 6231)]