123721143

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{1979}}^1$

素因数の和:2231

約数の個数: 32

約数和(自身を含む): 204019200

約数和(自身を除く): 80298057

約数列:

[1, 3, 7, 13, 21, 39, 91, 229, 273, 687, 1603, 1979, 2977, 4809, 5937, 8931, 13853, 20839, 25727, 41559, 62517, 77181, 180089, 453191, 540267, 1359573, 3172337, 5891483, 9517011, 17674449, 41240381, 123721143]

約数ペア:

[(1, 123721143), (3, 41240381), (7, 17674449), (13, 9517011), (21, 5891483), (39, 3172337), (91, 1359573), (229, 540267), (273, 453191), (687, 180089), (1603, 77181), (1979, 62517), (2977, 41559), (4809, 25727), (5937, 20839), (8931, 13853)]