213156713

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{12757}}^1$

素因数の和:12813

約数の個数: 24

約数和(自身を含む): 279247104

約数和(自身を除く): 66090391

約数列:

[1, 7, 11, 31, 49, 77, 217, 341, 539, 1519, 2387, 12757, 16709, 89299, 140327, 395467, 625093, 982289, 2768269, 4350137, 6876023, 19377883, 30450959, 213156713]

約数ペア:

[(1, 213156713), (7, 30450959), (11, 19377883), (31, 6876023), (49, 4350137), (77, 2768269), (217, 982289), (341, 625093), (539, 395467), (1519, 140327), (2387, 89299), (12757, 16709)]