19740981

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{26641}}^1$

素因数の和:26676

約数の個数: 16

約数和(自身を含む): 29839040

約数和(自身を除く): 10098059

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 26641, 79923, 346333, 506179, 1038999, 1518537, 6580327, 19740981]

約数ペア:

[(1, 19740981), (3, 6580327), (13, 1518537), (19, 1038999), (39, 506179), (57, 346333), (247, 79923), (741, 26641)]