21487444

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 43154496

約数和(自身を除く): 21667052

約数列:

[1, 2, 4, 11, 22, 41, 43, 44, 82, 86, 164, 172, 277, 451, 473, 554, 902, 946, 1108, 1763, 1804, 1892, 3047, 3526, 6094, 7052, 11357, 11911, 12188, 19393, 22714, 23822, 38786, 45428, 47644, 77572, 124927, 131021, 249854, 262042, 488351, 499708, 524084, 976702, 1953404, 5371861, 10743722, 21487444]

約数ペア:

[(1, 21487444), (2, 10743722), (4, 5371861), (11, 1953404), (22, 976702), (41, 524084), (43, 499708), (44, 488351), (82, 262042), (86, 249854), (164, 131021), (172, 124927), (277, 77572), (451, 47644), (473, 45428), (554, 38786), (902, 23822), (946, 22714), (1108, 19393), (1763, 12188), (1804, 11911), (1892, 11357), (3047, 7052), (3526, 6094)]