49889889

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1$

素因数の和:179

約数の個数: 72

約数和(自身を含む): 89631360

約数和(自身を除く): 39741471

約数列:

[1, 3, 7, 9, 21, 29, 47, 49, 63, 83, 87, 141, 147, 203, 249, 261, 329, 423, 441, 581, 609, 747, 987, 1363, 1421, 1743, 1827, 2303, 2407, 2961, 3901, 4067, 4089, 4263, 5229, 6909, 7221, 9541, 11703, 12201, 12267, 12789, 16849, 20727, 21663, 27307, 28623, 35109, 36603, 50547, 66787, 81921, 85869, 113129, 117943, 151641, 191149, 200361, 245763, 339387, 353829, 573447, 601083, 791903, 1018161, 1061487, 1720341, 2375709, 5543321, 7127127, 16629963, 49889889]

約数ペア:

[(1, 49889889), (3, 16629963), (7, 7127127), (9, 5543321), (21, 2375709), (29, 1720341), (47, 1061487), (49, 1018161), (63, 791903), (83, 601083), (87, 573447), (141, 353829), (147, 339387), (203, 245763), (249, 200361), (261, 191149), (329, 151641), (423, 117943), (441, 113129), (581, 85869), (609, 81921), (747, 66787), (987, 50547), (1363, 36603), (1421, 35109), (1743, 28623), (1827, 27307), (2303, 21663), (2407, 20727), (2961, 16849), (3901, 12789), (4067, 12267), (4089, 12201), (4263, 11703), (5229, 9541), (6909, 7221)]