25640769

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 44093376

約数和(自身を除く): 18452607

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 101, 147, 157, 231, 303, 471, 539, 707, 1099, 1111, 1617, 1727, 2121, 3297, 3333, 4949, 5181, 7693, 7777, 12089, 14847, 15857, 23079, 23331, 36267, 47571, 54439, 84623, 110999, 163317, 174427, 253869, 332997, 523281, 776993, 1220989, 2330979, 3662967, 8546923, 25640769]

約数ペア:

[(1, 25640769), (3, 8546923), (7, 3662967), (11, 2330979), (21, 1220989), (33, 776993), (49, 523281), (77, 332997), (101, 253869), (147, 174427), (157, 163317), (231, 110999), (303, 84623), (471, 54439), (539, 47571), (707, 36267), (1099, 23331), (1111, 23079), (1617, 15857), (1727, 14847), (2121, 12089), (3297, 7777), (3333, 7693), (4949, 5181)]