81949905

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{38747}}^1$

素因数の和:38805

約数の個数: 24

約数和(自身を含む): 145072512

約数和(自身を除く): 63122607

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 38747, 116241, 193735, 348723, 581205, 1743615, 1821109, 5463327, 9105545, 16389981, 27316635, 81949905]

約数ペア:

[(1, 81949905), (3, 27316635), (5, 16389981), (9, 9105545), (15, 5463327), (45, 1821109), (47, 1743615), (141, 581205), (235, 348723), (423, 193735), (705, 116241), (2115, 38747)]