21343311

素因数分解:

$3^3\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:217

約数の個数: 48

約数和(自身を含む): 35750400

約数和(自身を除く): 14407089

約数列:

[1, 3, 9, 11, 27, 33, 47, 99, 121, 139, 141, 297, 363, 417, 423, 517, 1089, 1251, 1269, 1529, 1551, 3267, 3753, 4587, 4653, 5687, 6533, 13761, 13959, 16819, 17061, 19599, 41283, 50457, 51183, 58797, 71863, 151371, 153549, 176391, 215589, 454113, 646767, 790493, 1940301, 2371479, 7114437, 21343311]

約数ペア:

[(1, 21343311), (3, 7114437), (9, 2371479), (11, 1940301), (27, 790493), (33, 646767), (47, 454113), (99, 215589), (121, 176391), (139, 153549), (141, 151371), (297, 71863), (363, 58797), (417, 51183), (423, 50457), (517, 41283), (1089, 19599), (1251, 17061), (1269, 16819), (1529, 13959), (1551, 13761), (3267, 6533), (3753, 5687), (4587, 4653)]