221499279

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{73907}}^1$

素因数の和:73956

約数の個数: 20

約数和(自身を含む): 339828984

約数和(自身を除く): 118329705

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 73907, 221721, 665163, 1995489, 2734559, 5986467, 8203677, 24611031, 73833093, 221499279]

約数ペア:

[(1, 221499279), (3, 73833093), (9, 24611031), (27, 8203677), (37, 5986467), (81, 2734559), (111, 1995489), (333, 665163), (999, 221721), (2997, 73907)]