21894777

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{197}}^1\times {\mathrm{233}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 32525064

約数和(自身を除く): 10630287

約数列:

[1, 3, 9, 53, 159, 197, 233, 477, 591, 699, 1773, 2097, 10441, 12349, 31323, 37047, 45901, 93969, 111141, 137703, 413109, 2432753, 7298259, 21894777]

約数ペア:

[(1, 21894777), (3, 7298259), (9, 2432753), (53, 413109), (159, 137703), (197, 111141), (233, 93969), (477, 45901), (591, 37047), (699, 31323), (1773, 12349), (2097, 10441)]