18965286

素因数分解:

$2^1\times 3^3\times {\mathrm{157}}^1\times {\mathrm{2237}}^1$

素因数の和:2405

約数の個数: 32

約数和(自身を含む): 42432480

約数和(自身を除く): 23467194

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 157, 314, 471, 942, 1413, 2237, 2826, 4239, 4474, 6711, 8478, 13422, 20133, 40266, 60399, 120798, 351209, 702418, 1053627, 2107254, 3160881, 6321762, 9482643, 18965286]

約数ペア:

[(1, 18965286), (2, 9482643), (3, 6321762), (6, 3160881), (9, 2107254), (18, 1053627), (27, 702418), (54, 351209), (157, 120798), (314, 60399), (471, 40266), (942, 20133), (1413, 13422), (2237, 8478), (2826, 6711), (4239, 4474)]