21584409

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:158

約数の個数: 64

約数和(自身を含む): 38320128

約数和(自身を除く): 16735719

約数列:

[1, 3, 7, 11, 21, 33, 41, 43, 53, 77, 123, 129, 159, 231, 287, 301, 371, 451, 473, 583, 861, 903, 1113, 1353, 1419, 1749, 1763, 2173, 2279, 3157, 3311, 4081, 5289, 6519, 6837, 9471, 9933, 12243, 12341, 15211, 15953, 19393, 23903, 25069, 37023, 45633, 47859, 58179, 71709, 75207, 93439, 135751, 167321, 175483, 280317, 407253, 501963, 526449, 654073, 1027829, 1962219, 3083487, 7194803, 21584409]

約数ペア:

[(1, 21584409), (3, 7194803), (7, 3083487), (11, 1962219), (21, 1027829), (33, 654073), (41, 526449), (43, 501963), (53, 407253), (77, 280317), (123, 175483), (129, 167321), (159, 135751), (231, 93439), (287, 75207), (301, 71709), (371, 58179), (451, 47859), (473, 45633), (583, 37023), (861, 25069), (903, 23903), (1113, 19393), (1353, 15953), (1419, 15211), (1749, 12341), (1763, 12243), (2173, 9933), (2279, 9471), (3157, 6837), (3311, 6519), (4081, 5289)]