51103521

素因数分解:

$3^3\times 7^2\times {\mathrm{19}}^2\times {\mathrm{107}}^1$

素因数の和:168

約数の個数: 72

約数和(自身を含む): 93817440

約数和(自身を除く): 42713919

約数列:

[1, 3, 7, 9, 19, 21, 27, 49, 57, 63, 107, 133, 147, 171, 189, 321, 361, 399, 441, 513, 749, 931, 963, 1083, 1197, 1323, 2033, 2247, 2527, 2793, 2889, 3249, 3591, 5243, 6099, 6741, 7581, 8379, 9747, 14231, 15729, 17689, 18297, 20223, 22743, 25137, 38627, 42693, 47187, 53067, 54891, 68229, 99617, 115881, 128079, 141561, 159201, 270389, 298851, 347643, 384237, 477603, 811167, 896553, 1042929, 1892723, 2433501, 2689659, 5678169, 7300503, 17034507, 51103521]

約数ペア:

[(1, 51103521), (3, 17034507), (7, 7300503), (9, 5678169), (19, 2689659), (21, 2433501), (27, 1892723), (49, 1042929), (57, 896553), (63, 811167), (107, 477603), (133, 384237), (147, 347643), (171, 298851), (189, 270389), (321, 159201), (361, 141561), (399, 128079), (441, 115881), (513, 99617), (749, 68229), (931, 54891), (963, 53067), (1083, 47187), (1197, 42693), (1323, 38627), (2033, 25137), (2247, 22743), (2527, 20223), (2793, 18297), (2889, 17689), (3249, 15729), (3591, 14231), (5243, 9747), (6099, 8379), (6741, 7581)]