20881133

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{929}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 27230400

約数和(自身を除く): 6349267

約数列:

[1, 7, 13, 19, 91, 133, 169, 247, 929, 1183, 1729, 3211, 6503, 12077, 17651, 22477, 84539, 123557, 157001, 229463, 1099007, 1606241, 2983019, 20881133]

約数ペア:

[(1, 20881133), (7, 2983019), (13, 1606241), (19, 1099007), (91, 229463), (133, 157001), (169, 123557), (247, 84539), (929, 22477), (1183, 17651), (1729, 12077), (3211, 6503)]