21348828

素因数分解:

$2^2\times 3^2\times {\mathrm{347}}^1\times {\mathrm{1709}}^1$

素因数の和:2066

約数の個数: 36

約数和(自身を含む): 54152280

約数和(自身を除く): 32803452

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 347, 694, 1041, 1388, 1709, 2082, 3123, 3418, 4164, 5127, 6246, 6836, 10254, 12492, 15381, 20508, 30762, 61524, 593023, 1186046, 1779069, 2372092, 3558138, 5337207, 7116276, 10674414, 21348828]

約数ペア:

[(1, 21348828), (2, 10674414), (3, 7116276), (4, 5337207), (6, 3558138), (9, 2372092), (12, 1779069), (18, 1186046), (36, 593023), (347, 61524), (694, 30762), (1041, 20508), (1388, 15381), (1709, 12492), (2082, 10254), (3123, 6836), (3418, 6246), (4164, 5127)]