220290161

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{2963}}^1$

素因数の和:3045

約数の個数: 32

約数和(自身を含む): 292131840

約数和(自身を除く): 71841679

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 559, 817, 1729, 2963, 3913, 5719, 10621, 20741, 38519, 56297, 74347, 127409, 269633, 394079, 731861, 891863, 1656317, 2420771, 5123027, 11594219, 16945397, 31470023, 220290161]

約数ペア:

[(1, 220290161), (7, 31470023), (13, 16945397), (19, 11594219), (43, 5123027), (91, 2420771), (133, 1656317), (247, 891863), (301, 731861), (559, 394079), (817, 269633), (1729, 127409), (2963, 74347), (3913, 56297), (5719, 38519), (10621, 20741)]