279998397

素因数分解:

$3^3\times 7^2\times {\mathrm{211639}}^1$

素因数の和:211662

約数の個数: 24

約数和(自身を含む): 482539200

約数和(自身を除く): 202540803

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 211639, 634917, 1481473, 1904751, 4444419, 5714253, 10370311, 13333257, 31110933, 39999771, 93332799, 279998397]

約数ペア:

[(1, 279998397), (3, 93332799), (7, 39999771), (9, 31110933), (21, 13333257), (27, 10370311), (49, 5714253), (63, 4444419), (147, 1904751), (189, 1481473), (441, 634917), (1323, 211639)]