18116217

素因数分解:

$3^4\times 7^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:467

約数の個数: 40

約数和(自身を含む): 31363200

約数和(自身を除く): 13246983

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 89, 189, 267, 359, 567, 623, 801, 1077, 1869, 2403, 2513, 3231, 5607, 7209, 7539, 9693, 16821, 22617, 29079, 31951, 50463, 67851, 95853, 203553, 223657, 287559, 670971, 862677, 2012913, 2588031, 6038739, 18116217]

約数ペア:

[(1, 18116217), (3, 6038739), (7, 2588031), (9, 2012913), (21, 862677), (27, 670971), (63, 287559), (81, 223657), (89, 203553), (189, 95853), (267, 67851), (359, 50463), (567, 31951), (623, 29079), (801, 22617), (1077, 16821), (1869, 9693), (2403, 7539), (2513, 7209), (3231, 5607)]