15312751909

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{40813}}^1$

素因数の和:40890

約数の個数: 48

約数和(自身を含む): 20844526080

約数和(自身を除く): 5531774171

約数列:

[1, 7, 13, 19, 31, 49, 91, 133, 217, 247, 403, 589, 637, 931, 1519, 1729, 2821, 4123, 7657, 12103, 19747, 28861, 40813, 53599, 285691, 375193, 530569, 775447, 1265203, 1999837, 3713983, 5428129, 8856421, 10080811, 16447639, 24038857, 25997881, 37996903, 61994947, 70565677, 115133473, 168271999, 312505141, 493959739, 805934311, 1177903993, 2187535987, 15312751909]

約数ペア:

[(1, 15312751909), (7, 2187535987), (13, 1177903993), (19, 805934311), (31, 493959739), (49, 312505141), (91, 168271999), (133, 115133473), (217, 70565677), (247, 61994947), (403, 37996903), (589, 25997881), (637, 24038857), (931, 16447639), (1519, 10080811), (1729, 8856421), (2821, 5428129), (4123, 3713983), (7657, 1999837), (12103, 1265203), (19747, 775447), (28861, 530569), (40813, 375193), (53599, 285691)]