253114813

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{271}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 310210560

約数和(自身を除く): 57095747

約数列:

[1, 7, 29, 43, 107, 203, 271, 301, 749, 1247, 1897, 3103, 4601, 7859, 8729, 11653, 21721, 28997, 32207, 55013, 81571, 133429, 202979, 337937, 840913, 934003, 1246871, 2365559, 5886391, 8728097, 36159259, 253114813]

約数ペア:

[(1, 253114813), (7, 36159259), (29, 8728097), (43, 5886391), (107, 2365559), (203, 1246871), (271, 934003), (301, 840913), (749, 337937), (1247, 202979), (1897, 133429), (3103, 81571), (4601, 55013), (7859, 32207), (8729, 28997), (11653, 21721)]