217248857

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{2351}}^1$

素因数の和:2708

約数の個数: 16

約数和(自身を含む): 254994432

約数和(自身を除く): 37745575

約数列:

[1, 7, 43, 301, 307, 2149, 2351, 13201, 16457, 92407, 101093, 707651, 721757, 5052299, 31035551, 217248857]

約数ペア:

[(1, 217248857), (7, 31035551), (43, 5052299), (301, 721757), (307, 707651), (2149, 101093), (2351, 92407), (13201, 16457)]