28151305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61871}}^1$

素因数の和:61896

約数の個数: 16

約数和(自身を含む): 41577984

約数和(自身を除く): 13426679

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 61871, 309355, 433097, 804323, 2165485, 4021615, 5630261, 28151305]

約数ペア:

[(1, 28151305), (5, 5630261), (7, 4021615), (13, 2165485), (35, 804323), (65, 433097), (91, 309355), (455, 61871)]