21493241

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5939}}^1$

素因数の和:6004

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 5878279

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5939, 41573, 65329, 279133, 457303, 1953931, 3070463, 21493241]

約数ペア:

[(1, 21493241), (7, 3070463), (11, 1953931), (47, 457303), (77, 279133), (329, 65329), (517, 41573), (3619, 5939)]