20861718

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:508

約数の個数: 32

約数和(自身を含む): 42650496

約数和(自身を除く): 21788778

約数列:

[1, 2, 3, 6, 83, 163, 166, 249, 257, 326, 489, 498, 514, 771, 978, 1542, 13529, 21331, 27058, 40587, 41891, 42662, 63993, 81174, 83782, 125673, 127986, 251346, 3476953, 6953906, 10430859, 20861718]

約数ペア:

[(1, 20861718), (2, 10430859), (3, 6953906), (6, 3476953), (83, 251346), (163, 127986), (166, 125673), (249, 83782), (257, 81174), (326, 63993), (489, 42662), (498, 41891), (514, 40587), (771, 27058), (978, 21331), (1542, 13529)]