21494718

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{5503}}^1$

素因数の和:5549

約数の個数: 48

約数和(自身を含む): 54951936

約数和(自身を除く): 33457218

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 31, 42, 62, 63, 93, 126, 186, 217, 279, 434, 558, 651, 1302, 1953, 3906, 5503, 11006, 16509, 33018, 38521, 49527, 77042, 99054, 115563, 170593, 231126, 341186, 346689, 511779, 693378, 1023558, 1194151, 1535337, 2388302, 3070674, 3582453, 7164906, 10747359, 21494718]

約数ペア:

[(1, 21494718), (2, 10747359), (3, 7164906), (6, 3582453), (7, 3070674), (9, 2388302), (14, 1535337), (18, 1194151), (21, 1023558), (31, 693378), (42, 511779), (62, 346689), (63, 341186), (93, 231126), (126, 170593), (186, 115563), (217, 99054), (279, 77042), (434, 49527), (558, 38521), (651, 33018), (1302, 16509), (1953, 11006), (3906, 5503)]