254451717

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{30631}}^1$

素因数の和:30721

約数の個数: 24

約数和(自身を含む): 401401728

約数和(自身を除く): 146950011

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 30631, 91893, 275679, 398203, 1194609, 2174801, 3583827, 6524403, 19573209, 28272413, 84817239, 254451717]

約数ペア:

[(1, 254451717), (3, 84817239), (9, 28272413), (13, 19573209), (39, 6524403), (71, 3583827), (117, 2174801), (213, 1194609), (639, 398203), (923, 275679), (2769, 91893), (8307, 30631)]