21609387

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{1061}}^1$

素因数の和:1171

約数の個数: 24

約数和(自身を含む): 32692608

約数和(自身を除く): 11083221

約数列:

[1, 3, 9, 31, 73, 93, 219, 279, 657, 1061, 2263, 3183, 6789, 9549, 20367, 32891, 77453, 98673, 232359, 296019, 697077, 2401043, 7203129, 21609387]

約数ペア:

[(1, 21609387), (3, 7203129), (9, 2401043), (31, 697077), (73, 296019), (93, 232359), (219, 98673), (279, 77453), (657, 32891), (1061, 20367), (2263, 9549), (3183, 6789)]