19912265

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{709}}^1$

素因数の和:892

約数の個数: 16

約数和(自身を含む): 24690960

約数和(自身を除く): 4778695

約数列:

[1, 5, 41, 137, 205, 685, 709, 3545, 5617, 28085, 29069, 97133, 145345, 485665, 3982453, 19912265]

約数ペア:

[(1, 19912265), (5, 3982453), (41, 485665), (137, 145345), (205, 97133), (685, 29069), (709, 28085), (3545, 5617)]