12981357

素因数分解:

$3^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 20304000

約数和(自身を除く): 7322643

約数列:

[1, 3, 9, 27, 29, 59, 87, 177, 261, 281, 531, 783, 843, 1593, 1711, 2529, 5133, 7587, 8149, 15399, 16579, 24447, 46197, 49737, 73341, 149211, 220023, 447633, 480791, 1442373, 4327119, 12981357]

約数ペア:

[(1, 12981357), (3, 4327119), (9, 1442373), (27, 480791), (29, 447633), (59, 220023), (87, 149211), (177, 73341), (261, 49737), (281, 46197), (531, 24447), (783, 16579), (843, 15399), (1593, 8149), (1711, 7587), (2529, 5133)]