19980138

素因数分解:

$2^1\times 3^1\times {\mathrm{139}}^1\times {\mathrm{23957}}^1$

素因数の和:24101

約数の個数: 16

約数和(自身を含む): 40249440

約数和(自身を除く): 20269302

約数列:

[1, 2, 3, 6, 139, 278, 417, 834, 23957, 47914, 71871, 143742, 3330023, 6660046, 9990069, 19980138]

約数ペア:

[(1, 19980138), (2, 9990069), (3, 6660046), (6, 3330023), (139, 143742), (278, 71871), (417, 47914), (834, 23957)]