21025471

素因数分解:

${\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{191}}^1$

素因数の和:342

約数の個数: 16

約数和(自身を含む): 22560768

約数和(自身を除く): 1535297

約数列:

[1, 31, 53, 67, 191, 1643, 2077, 3551, 5921, 10123, 12797, 110081, 313813, 396707, 678241, 21025471]

約数ペア:

[(1, 21025471), (31, 678241), (53, 396707), (67, 313813), (191, 110081), (1643, 12797), (2077, 10123), (3551, 5921)]