16889015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:144

約数の個数: 48

約数和(自身を含む): 25297920

約数和(自身を除く): 8408905

約数列:

[1, 5, 11, 13, 23, 55, 65, 79, 115, 143, 169, 253, 299, 395, 715, 845, 869, 1027, 1265, 1495, 1817, 1859, 3289, 3887, 4345, 5135, 9085, 9295, 11297, 13351, 16445, 19435, 19987, 23621, 42757, 56485, 66755, 99935, 118105, 146861, 213785, 259831, 307073, 734305, 1299155, 1535365, 3377803, 16889015]

約数ペア:

[(1, 16889015), (5, 3377803), (11, 1535365), (13, 1299155), (23, 734305), (55, 307073), (65, 259831), (79, 213785), (115, 146861), (143, 118105), (169, 99935), (253, 66755), (299, 56485), (395, 42757), (715, 23621), (845, 19987), (869, 19435), (1027, 16445), (1265, 13351), (1495, 11297), (1817, 9295), (1859, 9085), (3289, 5135), (3887, 4345)]