20055618

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{509}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 47736000

約数和(自身を除く): 27680382

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 199, 398, 509, 597, 1018, 1194, 1527, 1791, 2189, 3054, 3582, 4378, 4581, 5599, 6567, 9162, 11198, 13134, 16797, 19701, 33594, 39402, 50391, 100782, 101291, 202582, 303873, 607746, 911619, 1114201, 1823238, 2228402, 3342603, 6685206, 10027809, 20055618]

約数ペア:

[(1, 20055618), (2, 10027809), (3, 6685206), (6, 3342603), (9, 2228402), (11, 1823238), (18, 1114201), (22, 911619), (33, 607746), (66, 303873), (99, 202582), (198, 101291), (199, 100782), (398, 50391), (509, 39402), (597, 33594), (1018, 19701), (1194, 16797), (1527, 13134), (1791, 11198), (2189, 9162), (3054, 6567), (3582, 5599), (4378, 4581)]