18766917

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{421}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 30248960

約数和(自身を除く): 11482043

約数列:

[1, 3, 9, 13, 27, 39, 117, 127, 351, 381, 421, 1143, 1263, 1651, 3429, 3789, 4953, 5473, 11367, 14859, 16419, 44577, 49257, 53467, 147771, 160401, 481203, 695071, 1443609, 2085213, 6255639, 18766917]

約数ペア:

[(1, 18766917), (3, 6255639), (9, 2085213), (13, 1443609), (27, 695071), (39, 481203), (117, 160401), (127, 147771), (351, 53467), (381, 49257), (421, 44577), (1143, 16419), (1263, 14859), (1651, 11367), (3429, 5473), (3789, 4953)]