17925721

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 20736000

約数和(自身を除く): 2810279

約数列:

[1, 11, 19, 199, 209, 431, 2189, 3781, 4741, 8189, 41591, 85769, 90079, 943459, 1629611, 17925721]

約数ペア:

[(1, 17925721), (11, 1629611), (19, 943459), (199, 90079), (209, 85769), (431, 41591), (2189, 8189), (3781, 4741)]