15121521

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:773

約数の個数: 24

約数和(自身を含む): 22853376

約数和(自身を除く): 7731855

約数列:

[1, 3, 9, 31, 83, 93, 249, 279, 653, 747, 1959, 2573, 5877, 7719, 20243, 23157, 54199, 60729, 162597, 182187, 487791, 1680169, 5040507, 15121521]

約数ペア:

[(1, 15121521), (3, 5040507), (9, 1680169), (31, 487791), (83, 182187), (93, 162597), (249, 60729), (279, 54199), (653, 23157), (747, 20243), (1959, 7719), (2573, 5877)]