7988981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 11225088

約数和(自身を除く): 3236107

約数列:

[1, 7, 11, 13, 23, 77, 91, 143, 161, 253, 299, 347, 1001, 1771, 2093, 2429, 3289, 3817, 4511, 7981, 23023, 26719, 31577, 49621, 55867, 87791, 103753, 347347, 614537, 726271, 1141283, 7988981]

約数ペア:

[(1, 7988981), (7, 1141283), (11, 726271), (13, 614537), (23, 347347), (77, 103753), (91, 87791), (143, 55867), (161, 49621), (253, 31577), (299, 26719), (347, 23023), (1001, 7981), (1771, 4511), (2093, 3817), (2429, 3289)]