138908511

素因数分解:

$3^2\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{1999}}^1$

素因数の和:3115

約数の個数: 24

約数和(自身を含む): 229632000

約数和(自身を除く): 90723489

約数列:

[1, 3, 7, 9, 21, 63, 1103, 1999, 3309, 5997, 7721, 9927, 13993, 17991, 23163, 41979, 69489, 125937, 2204897, 6614691, 15434279, 19844073, 46302837, 138908511]

約数ペア:

[(1, 138908511), (3, 46302837), (7, 19844073), (9, 15434279), (21, 6614691), (63, 2204897), (1103, 125937), (1999, 69489), (3309, 41979), (5997, 23163), (7721, 17991), (9927, 13993)]