2188571

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 2796288

約数和(自身を除く): 607717

約数列:

[1, 7, 11, 43, 77, 301, 473, 661, 3311, 4627, 7271, 28423, 50897, 198961, 312653, 2188571]

約数ペア:

[(1, 2188571), (7, 312653), (11, 198961), (43, 50897), (77, 28423), (301, 7271), (473, 4627), (661, 3311)]