18080019

素因数分解:

$3^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:575

約数の個数: 24

約数和(自身を含む): 26956800

約数和(自身を除く): 8876781

約数列:

[1, 3, 9, 59, 79, 177, 237, 431, 531, 711, 1293, 3879, 4661, 13983, 25429, 34049, 41949, 76287, 102147, 228861, 306441, 2008891, 6026673, 18080019]

約数ペア:

[(1, 18080019), (3, 6026673), (9, 2008891), (59, 306441), (79, 228861), (177, 102147), (237, 76287), (431, 41949), (531, 34049), (711, 25429), (1293, 13983), (3879, 4661)]