20656458

素因数分解:

$2^1\times 3^5\times {\mathrm{19}}^1\times {\mathrm{2237}}^1$

素因数の和:2273

約数の個数: 48

約数和(自身を含む): 48877920

約数和(自身を除く): 28221462

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 342, 486, 513, 1026, 1539, 2237, 3078, 4474, 4617, 6711, 9234, 13422, 20133, 40266, 42503, 60399, 85006, 120798, 127509, 181197, 255018, 362394, 382527, 543591, 765054, 1087182, 1147581, 2295162, 3442743, 6885486, 10328229, 20656458]

約数ペア:

[(1, 20656458), (2, 10328229), (3, 6885486), (6, 3442743), (9, 2295162), (18, 1147581), (19, 1087182), (27, 765054), (38, 543591), (54, 382527), (57, 362394), (81, 255018), (114, 181197), (162, 127509), (171, 120798), (243, 85006), (342, 60399), (486, 42503), (513, 40266), (1026, 20133), (1539, 13422), (2237, 9234), (3078, 6711), (4474, 4617)]