21202986

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{1759}}^1$

素因数の和:1819

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 29358294

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 49, 82, 98, 123, 147, 246, 287, 294, 574, 861, 1722, 1759, 2009, 3518, 4018, 5277, 6027, 10554, 12054, 12313, 24626, 36939, 72119, 73878, 86191, 144238, 172382, 216357, 258573, 432714, 504833, 517146, 1009666, 1514499, 3028998, 3533831, 7067662, 10601493, 21202986]

約数ペア:

[(1, 21202986), (2, 10601493), (3, 7067662), (6, 3533831), (7, 3028998), (14, 1514499), (21, 1009666), (41, 517146), (42, 504833), (49, 432714), (82, 258573), (98, 216357), (123, 172382), (147, 144238), (246, 86191), (287, 73878), (294, 72119), (574, 36939), (861, 24626), (1722, 12313), (1759, 12054), (2009, 10554), (3518, 6027), (4018, 5277)]