15894963

素因数分解:

$3^2\times 7^3\times {\mathrm{19}}^1\times {\mathrm{271}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 28288000

約数和(自身を除く): 12393037

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 271, 343, 399, 441, 813, 931, 1029, 1197, 1897, 2439, 2793, 3087, 5149, 5691, 6517, 8379, 13279, 15447, 17073, 19551, 36043, 39837, 46341, 58653, 92953, 108129, 119511, 252301, 278859, 324387, 756903, 836577, 1766107, 2270709, 5298321, 15894963]

約数ペア:

[(1, 15894963), (3, 5298321), (7, 2270709), (9, 1766107), (19, 836577), (21, 756903), (49, 324387), (57, 278859), (63, 252301), (133, 119511), (147, 108129), (171, 92953), (271, 58653), (343, 46341), (399, 39837), (441, 36043), (813, 19551), (931, 17073), (1029, 15447), (1197, 13279), (1897, 8379), (2439, 6517), (2793, 5691), (3087, 5149)]