19802205

素因数分解:

$3^3\times 5^1\times {\mathrm{146683}}^1$

素因数の和:146697

約数の個数: 16

約数和(自身を含む): 35204160

約数和(自身を除く): 15401955

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 146683, 440049, 733415, 1320147, 2200245, 3960441, 6600735, 19802205]

約数ペア:

[(1, 19802205), (3, 6600735), (5, 3960441), (9, 2200245), (15, 1320147), (27, 733415), (45, 440049), (135, 146683)]