81750009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{1087}}^1$

素因数の和:1197

約数の個数: 32

約数和(自身を含む): 124084224

約数和(自身を除く): 42334215

約数列:

[1, 3, 11, 33, 43, 53, 129, 159, 473, 583, 1087, 1419, 1749, 2279, 3261, 6837, 11957, 25069, 35871, 46741, 57611, 75207, 140223, 172833, 514151, 633721, 1542453, 1901163, 2477273, 7431819, 27250003, 81750009]

約数ペア:

[(1, 81750009), (3, 27250003), (11, 7431819), (33, 2477273), (43, 1901163), (53, 1542453), (129, 633721), (159, 514151), (473, 172833), (583, 140223), (1087, 75207), (1419, 57611), (1749, 46741), (2279, 35871), (3261, 25069), (6837, 11957)]