20756718

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 47357856

約数和(自身を除く): 26601138

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 181, 207, 277, 362, 414, 543, 554, 831, 1086, 1629, 1662, 2493, 3258, 4163, 4986, 6371, 8326, 12489, 12742, 19113, 24978, 37467, 38226, 50137, 57339, 74934, 100274, 114678, 150411, 300822, 451233, 902466, 1153151, 2306302, 3459453, 6918906, 10378359, 20756718]

約数ペア:

[(1, 20756718), (2, 10378359), (3, 6918906), (6, 3459453), (9, 2306302), (18, 1153151), (23, 902466), (46, 451233), (69, 300822), (138, 150411), (181, 114678), (207, 100274), (277, 74934), (362, 57339), (414, 50137), (543, 38226), (554, 37467), (831, 24978), (1086, 19113), (1629, 12742), (1662, 12489), (2493, 8326), (3258, 6371), (4163, 4986)]