20882197

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{797}}^1$

素因数の和:1020

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 4398443

約数列:

[1, 7, 19, 133, 197, 797, 1379, 3743, 5579, 15143, 26201, 106001, 157009, 1099063, 2983171, 20882197]

約数ペア:

[(1, 20882197), (7, 2983171), (19, 1099063), (133, 157009), (197, 106001), (797, 26201), (1379, 15143), (3743, 5579)]