20121247986

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1669259}}^1$

素因数の和:1669319

約数の個数: 48

約数和(自身を含む): 47954501280

約数和(自身を除く): 27833253294

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 49, 82, 98, 123, 147, 246, 287, 294, 574, 861, 1722, 2009, 4018, 6027, 12054, 1669259, 3338518, 5007777, 10015554, 11684813, 23369626, 35054439, 68439619, 70108878, 81793691, 136879238, 163587382, 205318857, 245381073, 410637714, 479077333, 490762146, 958154666, 1437231999, 2874463998, 3353541331, 6707082662, 10060623993, 20121247986]

約数ペア:

[(1, 20121247986), (2, 10060623993), (3, 6707082662), (6, 3353541331), (7, 2874463998), (14, 1437231999), (21, 958154666), (41, 490762146), (42, 479077333), (49, 410637714), (82, 245381073), (98, 205318857), (123, 163587382), (147, 136879238), (246, 81793691), (287, 70108878), (294, 68439619), (574, 35054439), (861, 23369626), (1722, 11684813), (2009, 10015554), (4018, 5007777), (6027, 3338518), (12054, 1669259)]