20457955

素因数分解:

$5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{9907}}^1$

素因数の和:9978

約数の個数: 16

約数和(自身を含む): 28535040

約数和(自身を除く): 8077085

約数列:

[1, 5, 7, 35, 59, 295, 413, 2065, 9907, 49535, 69349, 346745, 584513, 2922565, 4091591, 20457955]

約数ペア:

[(1, 20457955), (5, 4091591), (7, 2922565), (35, 584513), (59, 346745), (295, 69349), (413, 49535), (2065, 9907)]