21547526

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 44513280

約数和(自身を除く): 22965754

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 47, 77, 91, 94, 143, 154, 182, 229, 286, 329, 458, 517, 611, 658, 1001, 1034, 1222, 1603, 2002, 2519, 2977, 3206, 3619, 4277, 5038, 5954, 6721, 7238, 8554, 10763, 13442, 17633, 20839, 21526, 32747, 35266, 41678, 47047, 65494, 75341, 94094, 118393, 139919, 150682, 229229, 236786, 279838, 458458, 828751, 979433, 1539109, 1657502, 1958866, 3078218, 10773763, 21547526]

約数ペア:

[(1, 21547526), (2, 10773763), (7, 3078218), (11, 1958866), (13, 1657502), (14, 1539109), (22, 979433), (26, 828751), (47, 458458), (77, 279838), (91, 236786), (94, 229229), (143, 150682), (154, 139919), (182, 118393), (229, 94094), (286, 75341), (329, 65494), (458, 47047), (517, 41678), (611, 35266), (658, 32747), (1001, 21526), (1034, 20839), (1222, 17633), (1603, 13442), (2002, 10763), (2519, 8554), (2977, 7238), (3206, 6721), (3619, 5954), (4277, 5038)]