19865261

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:173

約数の個数: 24

約数和(自身を含む): 23412480

約数和(自身を除く): 3547219

約数列:

[1, 13, 23, 29, 79, 299, 377, 667, 841, 1027, 1817, 2291, 8671, 10933, 19343, 23621, 29783, 52693, 66439, 251459, 685009, 863707, 1528097, 19865261]

約数ペア:

[(1, 19865261), (13, 1528097), (23, 863707), (29, 685009), (79, 251459), (299, 66439), (377, 52693), (667, 29783), (841, 23621), (1027, 19343), (1817, 10933), (2291, 8671)]