20050107

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:164

約数の個数: 64

約数和(自身を含む): 35804160

約数和(自身を除く): 15754053

約数列:

[1, 3, 7, 11, 21, 29, 33, 41, 73, 77, 87, 123, 203, 219, 231, 287, 319, 451, 511, 609, 803, 861, 957, 1189, 1353, 1533, 2117, 2233, 2409, 2993, 3157, 3567, 5621, 6351, 6699, 8323, 8979, 9471, 13079, 14819, 16863, 20951, 23287, 24969, 32923, 39237, 44457, 62853, 69861, 86797, 91553, 98769, 163009, 230461, 260391, 274659, 489027, 607579, 691383, 954767, 1822737, 2864301, 6683369, 20050107]

約数ペア:

[(1, 20050107), (3, 6683369), (7, 2864301), (11, 1822737), (21, 954767), (29, 691383), (33, 607579), (41, 489027), (73, 274659), (77, 260391), (87, 230461), (123, 163009), (203, 98769), (219, 91553), (231, 86797), (287, 69861), (319, 62853), (451, 44457), (511, 39237), (609, 32923), (803, 24969), (861, 23287), (957, 20951), (1189, 16863), (1353, 14819), (1533, 13079), (2117, 9471), (2233, 8979), (2409, 8323), (2993, 6699), (3157, 6351), (3567, 5621)]