28162981

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 36661248

約数和(自身を除く): 8498267

約数列:

[1, 7, 11, 53, 67, 77, 103, 371, 469, 583, 721, 737, 1133, 3551, 4081, 5159, 5459, 6901, 7931, 24857, 38213, 39061, 48307, 60049, 75911, 273427, 365753, 420343, 531377, 2560271, 4023283, 28162981]

約数ペア:

[(1, 28162981), (7, 4023283), (11, 2560271), (53, 531377), (67, 420343), (77, 365753), (103, 273427), (371, 75911), (469, 60049), (583, 48307), (721, 39061), (737, 38213), (1133, 24857), (3551, 7931), (4081, 6901), (5159, 5459)]