25478607

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{271}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 43990016

約数和(自身を除く): 18511409

約数列:

[1, 3, 7, 11, 21, 33, 37, 77, 111, 121, 231, 259, 271, 363, 407, 777, 813, 847, 1221, 1897, 2541, 2849, 2981, 4477, 5691, 8547, 8943, 10027, 13431, 20867, 30081, 31339, 32791, 62601, 70189, 94017, 98373, 110297, 210567, 229537, 330891, 688611, 772079, 1213267, 2316237, 3639801, 8492869, 25478607]

約数ペア:

[(1, 25478607), (3, 8492869), (7, 3639801), (11, 2316237), (21, 1213267), (33, 772079), (37, 688611), (77, 330891), (111, 229537), (121, 210567), (231, 110297), (259, 98373), (271, 94017), (363, 70189), (407, 62601), (777, 32791), (813, 31339), (847, 30081), (1221, 20867), (1897, 13431), (2541, 10027), (2849, 8943), (2981, 8547), (4477, 5691)]