21365470

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{6229}}^1$

素因数の和:6257

約数の個数: 32

約数和(自身を含む): 44856000

約数和(自身を除く): 23490530

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6229, 12458, 31145, 43603, 62290, 87206, 218015, 305221, 436030, 610442, 1526105, 2136547, 3052210, 4273094, 10682735, 21365470]

約数ペア:

[(1, 21365470), (2, 10682735), (5, 4273094), (7, 3052210), (10, 2136547), (14, 1526105), (35, 610442), (49, 436030), (70, 305221), (98, 218015), (245, 87206), (343, 62290), (490, 43603), (686, 31145), (1715, 12458), (3430, 6229)]