661599

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 1038960

約数和(自身を除く): 377361

約数列:

[1, 3, 9, 19, 53, 57, 73, 159, 171, 219, 477, 657, 1007, 1387, 3021, 3869, 4161, 9063, 11607, 12483, 34821, 73511, 220533, 661599]

約数ペア:

[(1, 661599), (3, 220533), (9, 73511), (19, 34821), (53, 12483), (57, 11607), (73, 9063), (159, 4161), (171, 3869), (219, 3021), (477, 1387), (657, 1007)]