18939751

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{307}}^1$

素因数の和:534

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 2349209

約数列:

[1, 17, 19, 191, 307, 323, 3247, 3629, 5219, 5833, 58637, 61693, 99161, 996829, 1114103, 18939751]

約数ペア:

[(1, 18939751), (17, 1114103), (19, 996829), (191, 99161), (307, 61693), (323, 58637), (3247, 5833), (3629, 5219)]