221405967

素因数分解:

$3^4\times {\mathrm{337}}^1\times {\mathrm{8111}}^1$

素因数の和:8460

約数の個数: 20

約数和(自身を含む): 331764576

約数和(自身を除く): 110358609

約数列:

[1, 3, 9, 27, 81, 337, 1011, 3033, 8111, 9099, 24333, 27297, 72999, 218997, 656991, 2733407, 8200221, 24600663, 73801989, 221405967]

約数ペア:

[(1, 221405967), (3, 73801989), (9, 24600663), (27, 8200221), (81, 2733407), (337, 656991), (1011, 218997), (3033, 72999), (8111, 27297), (9099, 24333)]