7121961

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 13178880

約数和(自身を除く): 6056919

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 239, 301, 387, 473, 693, 717, 903, 1419, 1673, 2151, 2629, 2709, 3311, 4257, 5019, 7887, 9933, 10277, 15057, 18403, 23661, 29799, 30831, 55209, 71939, 92493, 113047, 165627, 215817, 339141, 647451, 791329, 1017423, 2373987, 7121961]

約数ペア:

[(1, 7121961), (3, 2373987), (7, 1017423), (9, 791329), (11, 647451), (21, 339141), (33, 215817), (43, 165627), (63, 113047), (77, 92493), (99, 71939), (129, 55209), (231, 30831), (239, 29799), (301, 23661), (387, 18403), (473, 15057), (693, 10277), (717, 9933), (903, 7887), (1419, 5019), (1673, 4257), (2151, 3311), (2629, 2709)]