31589217

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:171

約数の個数: 64

約数和(自身を含む): 54558720

約数和(自身を除く): 22969503

約数列:

[1, 3, 9, 11, 27, 31, 33, 47, 73, 93, 99, 141, 219, 279, 297, 341, 423, 517, 657, 803, 837, 1023, 1269, 1457, 1551, 1971, 2263, 2409, 3069, 3431, 4371, 4653, 6789, 7227, 9207, 10293, 13113, 13959, 16027, 20367, 21681, 24893, 30879, 37741, 39339, 48081, 61101, 74679, 92637, 106361, 113223, 144243, 224037, 319083, 339669, 432729, 672111, 957249, 1019007, 1169971, 2871747, 3509913, 10529739, 31589217]

約数ペア:

[(1, 31589217), (3, 10529739), (9, 3509913), (11, 2871747), (27, 1169971), (31, 1019007), (33, 957249), (47, 672111), (73, 432729), (93, 339669), (99, 319083), (141, 224037), (219, 144243), (279, 113223), (297, 106361), (341, 92637), (423, 74679), (517, 61101), (657, 48081), (803, 39339), (837, 37741), (1023, 30879), (1269, 24893), (1457, 21681), (1551, 20367), (1971, 16027), (2263, 13959), (2409, 13113), (3069, 10293), (3431, 9207), (4371, 7227), (4653, 6789)]