2188109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{181}}^1$

素因数の和:356

約数の個数: 16

約数和(自身を含む): 2760576

約数和(自身を除く): 572467

約数列:

[1, 7, 11, 77, 157, 181, 1099, 1267, 1727, 1991, 12089, 13937, 28417, 198919, 312587, 2188109]

約数ペア:

[(1, 2188109), (7, 312587), (11, 198919), (77, 28417), (157, 13937), (181, 12089), (1099, 1991), (1267, 1727)]