18667974

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{239333}}^1$

素因数の和:239351

約数の個数: 16

約数和(自身を含む): 40208112

約数和(自身を除く): 21540138

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 239333, 478666, 717999, 1435998, 3111329, 6222658, 9333987, 18667974]

約数ペア:

[(1, 18667974), (2, 9333987), (3, 6222658), (6, 3111329), (13, 1435998), (26, 717999), (39, 478666), (78, 239333)]