21660197

素因数分解:

${\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1$

素因数の和:392

約数の個数: 16

約数和(自身を含む): 23955120

約数和(自身を除く): 2294923

約数列:

[1, 13, 89, 97, 193, 1157, 1261, 2509, 8633, 17177, 18721, 112229, 223301, 243373, 1666169, 21660197]

約数ペア:

[(1, 21660197), (13, 1666169), (89, 243373), (97, 223301), (193, 112229), (1157, 18721), (1261, 17177), (2509, 8633)]