2021815121

素因数分解:

${\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1\times {\mathrm{643}}^1$

素因数の和:1288

約数の個数: 16

約数和(自身を含む): 2086560000

約数和(自身を除く): 64744879

約数列:

[1, 47, 149, 449, 643, 7003, 21103, 30221, 66901, 95807, 288707, 3144347, 4502929, 13569229, 43017343, 2021815121]

約数ペア:

[(1, 2021815121), (47, 43017343), (149, 13569229), (449, 4502929), (643, 3144347), (7003, 288707), (21103, 95807), (30221, 66901)]