81242637

素因数分解:

$3^1\times 7^4\times {\mathrm{11279}}^1$

素因数の和:11310

約数の個数: 20

約数和(自身を含む): 126381120

約数和(自身を除く): 45138483

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 11279, 33837, 78953, 236859, 552671, 1658013, 3868697, 11606091, 27080879, 81242637]

約数ペア:

[(1, 81242637), (3, 27080879), (7, 11606091), (21, 3868697), (49, 1658013), (147, 552671), (343, 236859), (1029, 78953), (2401, 33837), (7203, 11279)]