128405193

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197243}}^1$

素因数の和:197284

約数の個数: 16

約数和(自身を含む): 201977856

約数和(自身を除く): 73572663

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 197243, 591729, 1380701, 4142103, 6114533, 18343599, 42801731, 128405193]

約数ペア:

[(1, 128405193), (3, 42801731), (7, 18343599), (21, 6114533), (31, 4142103), (93, 1380701), (217, 591729), (651, 197243)]