21386484

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{28289}}^1$

素因数の和:28309

約数の個数: 48

約数和(自身を含む): 63369600

約数和(自身を除く): 41983116

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 28289, 56578, 84867, 113156, 169734, 198023, 254601, 339468, 396046, 509202, 594069, 763803, 792092, 1018404, 1188138, 1527606, 1782207, 2376276, 3055212, 3564414, 5346621, 7128828, 10693242, 21386484]

約数ペア:

[(1, 21386484), (2, 10693242), (3, 7128828), (4, 5346621), (6, 3564414), (7, 3055212), (9, 2376276), (12, 1782207), (14, 1527606), (18, 1188138), (21, 1018404), (27, 792092), (28, 763803), (36, 594069), (42, 509202), (54, 396046), (63, 339468), (84, 254601), (108, 198023), (126, 169734), (189, 113156), (252, 84867), (378, 56578), (756, 28289)]