18191173

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1069}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 25885440

約数和(自身を除く): 7694267

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 187, 221, 1001, 1069, 1309, 1547, 2431, 7483, 11759, 13897, 17017, 18173, 82313, 97279, 127211, 152867, 199903, 236249, 1070069, 1399321, 1653743, 2598739, 18191173]

約数ペア:

[(1, 18191173), (7, 2598739), (11, 1653743), (13, 1399321), (17, 1070069), (77, 236249), (91, 199903), (119, 152867), (143, 127211), (187, 97279), (221, 82313), (1001, 18173), (1069, 17017), (1309, 13897), (1547, 11759), (2431, 7483)]