20513458

素因数分解:

$2^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{1759}}^1$

素因数の和:1799

約数の個数: 32

約数和(自身を含む): 38016000

約数和(自身を除く): 17502542

約数列:

[1, 2, 7, 14, 17, 34, 49, 98, 119, 238, 343, 686, 833, 1666, 1759, 3518, 5831, 11662, 12313, 24626, 29903, 59806, 86191, 172382, 209321, 418642, 603337, 1206674, 1465247, 2930494, 10256729, 20513458]

約数ペア:

[(1, 20513458), (2, 10256729), (7, 2930494), (14, 1465247), (17, 1206674), (34, 603337), (49, 418642), (98, 209321), (119, 172382), (238, 86191), (343, 59806), (686, 29903), (833, 24626), (1666, 12313), (1759, 11662), (3518, 5831)]