28291791

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:144

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 18986289

約数列:

[1, 3, 11, 17, 29, 33, 37, 47, 51, 87, 111, 141, 187, 319, 407, 493, 517, 561, 629, 799, 957, 1073, 1221, 1363, 1479, 1551, 1739, 1887, 2397, 3219, 4089, 5217, 5423, 6919, 8789, 11803, 14993, 16269, 18241, 19129, 20757, 23171, 26367, 29563, 35409, 44979, 50431, 54723, 57387, 69513, 88689, 151293, 200651, 254881, 325193, 554741, 601953, 764643, 857327, 975579, 1664223, 2571981, 9430597, 28291791]

約数ペア:

[(1, 28291791), (3, 9430597), (11, 2571981), (17, 1664223), (29, 975579), (33, 857327), (37, 764643), (47, 601953), (51, 554741), (87, 325193), (111, 254881), (141, 200651), (187, 151293), (319, 88689), (407, 69513), (493, 57387), (517, 54723), (561, 50431), (629, 44979), (799, 35409), (957, 29563), (1073, 26367), (1221, 23171), (1363, 20757), (1479, 19129), (1551, 18241), (1739, 16269), (1887, 14993), (2397, 11803), (3219, 8789), (4089, 6919), (5217, 5423)]