16842721

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 20976000

約数和(自身を除く): 4133279

約数列:

[1, 7, 19, 49, 79, 133, 229, 553, 931, 1501, 1603, 3871, 4351, 10507, 11221, 18091, 30457, 73549, 126637, 213199, 343729, 886459, 2406103, 16842721]

約数ペア:

[(1, 16842721), (7, 2406103), (19, 886459), (49, 343729), (79, 213199), (133, 126637), (229, 73549), (553, 30457), (931, 18091), (1501, 11221), (1603, 10507), (3871, 4351)]