18266781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{521}}^1$

素因数の和:597

約数の個数: 32

約数和(自身を含む): 28062720

約数和(自身を除く): 9795939

約数列:

[1, 3, 13, 29, 31, 39, 87, 93, 377, 403, 521, 899, 1131, 1209, 1563, 2697, 6773, 11687, 15109, 16151, 20319, 35061, 45327, 48453, 196417, 209963, 468379, 589251, 629889, 1405137, 6088927, 18266781]

約数ペア:

[(1, 18266781), (3, 6088927), (13, 1405137), (29, 629889), (31, 589251), (39, 468379), (87, 209963), (93, 196417), (377, 48453), (403, 45327), (521, 35061), (899, 20319), (1131, 16151), (1209, 15109), (1563, 11687), (2697, 6773)]