217809111569

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{1433}}^1\times {\mathrm{1142821}}^1$

素因数の和:1144280

約数の個数: 16

約数和(自身を含む): 262209079680

約数和(自身を除く): 44399968111

約数列:

[1, 7, 19, 133, 1433, 10031, 27227, 190589, 1142821, 7999747, 21713599, 151995193, 1637662493, 11463637451, 31115587367, 217809111569]

約数ペア:

[(1, 217809111569), (7, 31115587367), (19, 11463637451), (133, 1637662493), (1433, 151995193), (10031, 21713599), (27227, 7999747), (190589, 1142821)]