81491715

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{58417}}^1$

素因数の和:58459

約数の個数: 24

約数和(自身を含む): 145811328

約数和(自身を除く): 64319613

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 58417, 175251, 292085, 525753, 876255, 1810927, 2628765, 5432781, 9054635, 16298343, 27163905, 81491715]

約数ペア:

[(1, 81491715), (3, 27163905), (5, 16298343), (9, 9054635), (15, 5432781), (31, 2628765), (45, 1810927), (93, 876255), (155, 525753), (279, 292085), (465, 175251), (1395, 58417)]