21605570

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{6299}}^1$

素因数の和:6327

約数の個数: 32

約数和(自身を含む): 45360000

約数和(自身を除く): 23754430

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 6299, 12598, 31495, 44093, 62990, 88186, 220465, 308651, 440930, 617302, 1543255, 2160557, 3086510, 4321114, 10802785, 21605570]

約数ペア:

[(1, 21605570), (2, 10802785), (5, 4321114), (7, 3086510), (10, 2160557), (14, 1543255), (35, 617302), (49, 440930), (70, 308651), (98, 220465), (245, 88186), (343, 62990), (490, 44093), (686, 31495), (1715, 12598), (3430, 6299)]