18216979

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1686

約数の個数: 16

約数和(自身を含む): 21400416

約数和(自身を除く): 3183437

約数列:

[1, 11, 17, 61, 187, 671, 1037, 1597, 11407, 17567, 27149, 97417, 298639, 1071587, 1656089, 18216979]

約数ペア:

[(1, 18216979), (11, 1656089), (17, 1071587), (61, 298639), (187, 97417), (671, 27149), (1037, 17567), (1597, 11407)]