261130611

素因数分解:

$3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1\times {\mathrm{463}}^1$

素因数の和:831

約数の個数: 32

約数和(自身を含む): 404103168

約数和(自身を除く): 142972557

約数列:

[1, 3, 7, 21, 107, 251, 321, 463, 749, 753, 1389, 1757, 2247, 3241, 5271, 9723, 26857, 49541, 80571, 116213, 148623, 187999, 346787, 348639, 563997, 813491, 1040361, 2440473, 12434791, 37304373, 87043537, 261130611]

約数ペア:

[(1, 261130611), (3, 87043537), (7, 37304373), (21, 12434791), (107, 2440473), (251, 1040361), (321, 813491), (463, 563997), (749, 348639), (753, 346787), (1389, 187999), (1757, 148623), (2247, 116213), (3241, 80571), (5271, 49541), (9723, 26857)]