198685779

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 278476800

約数和(自身を除く): 79791021

約数列:

[1, 3, 47, 73, 97, 141, 199, 219, 291, 597, 3431, 4559, 7081, 9353, 10293, 13677, 14527, 19303, 21243, 28059, 43581, 57909, 332807, 682769, 907241, 998421, 1409119, 2048307, 2721723, 4227357, 66228593, 198685779]

約数ペア:

[(1, 198685779), (3, 66228593), (47, 4227357), (73, 2721723), (97, 2048307), (141, 1409119), (199, 998421), (219, 907241), (291, 682769), (597, 332807), (3431, 57909), (4559, 43581), (7081, 28059), (9353, 21243), (10293, 19303), (13677, 14527)]