2021497597

素因数分解:

$7^3\times {\mathrm{421}}^1\times {\mathrm{13999}}^1$

素因数の和:14441

約数の個数: 16

約数和(自身を含む): 2363200000

約数和(自身を除く): 341702403

約数列:

[1, 7, 49, 343, 421, 2947, 13999, 20629, 97993, 144403, 685951, 4801657, 5893579, 41255053, 288785371, 2021497597]

約数ペア:

[(1, 2021497597), (7, 288785371), (49, 41255053), (343, 5893579), (421, 4801657), (2947, 685951), (13999, 144403), (20629, 97993)]