19860957

素因数分解:

$3^4\times {\mathrm{359}}^1\times {\mathrm{683}}^1$

素因数の和:1054

約数の個数: 20

約数和(自身を含む): 29795040

約数和(自身を除く): 9934083

約数列:

[1, 3, 9, 27, 81, 359, 683, 1077, 2049, 3231, 6147, 9693, 18441, 29079, 55323, 245197, 735591, 2206773, 6620319, 19860957]

約数ペア:

[(1, 19860957), (3, 6620319), (9, 2206773), (27, 735591), (81, 245197), (359, 55323), (683, 29079), (1077, 18441), (2049, 9693), (3231, 6147)]