81564651

素因数分解:

$3^5\times 7^1\times {\mathrm{47951}}^1$

素因数の和:47973

約数の個数: 24

約数和(自身を含む): 139636224

約数和(自身を除く): 58071573

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 47951, 143853, 335657, 431559, 1006971, 1294677, 3020913, 3884031, 9062739, 11652093, 27188217, 81564651]

約数ペア:

[(1, 81564651), (3, 27188217), (7, 11652093), (9, 9062739), (21, 3884031), (27, 3020913), (63, 1294677), (81, 1006971), (189, 431559), (243, 335657), (567, 143853), (1701, 47951)]