19942881

素因数分解:

$3^1\times 7^1\times {\mathrm{569}}^1\times {\mathrm{1669}}^1$

素因数の和:2248

約数の個数: 16

約数和(自身を含む): 30460800

約数和(自身を除く): 10517919

約数列:

[1, 3, 7, 21, 569, 1669, 1707, 3983, 5007, 11683, 11949, 35049, 949661, 2848983, 6647627, 19942881]

約数ペア:

[(1, 19942881), (3, 6647627), (7, 2848983), (21, 949661), (569, 35049), (1669, 11949), (1707, 11683), (3983, 5007)]