20578266

素因数分解:

$2^1\times 3^3\times {\mathrm{131}}^1\times {\mathrm{2909}}^1$

素因数の和:3051

約数の個数: 32

約数和(自身を含む): 46094400

約数和(自身を除く): 25516134

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 131, 262, 393, 786, 1179, 2358, 2909, 3537, 5818, 7074, 8727, 17454, 26181, 52362, 78543, 157086, 381079, 762158, 1143237, 2286474, 3429711, 6859422, 10289133, 20578266]

約数ペア:

[(1, 20578266), (2, 10289133), (3, 6859422), (6, 3429711), (9, 2286474), (18, 1143237), (27, 762158), (54, 381079), (131, 157086), (262, 78543), (393, 52362), (786, 26181), (1179, 17454), (2358, 8727), (2909, 7074), (3537, 5818)]