20543968

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 42771456

約数和(自身を除く): 22227488

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 103, 184, 206, 271, 368, 412, 542, 736, 824, 1084, 1648, 2168, 2369, 3296, 4336, 4738, 6233, 8672, 9476, 12466, 18952, 24932, 27913, 37904, 49864, 55826, 75808, 99728, 111652, 199456, 223304, 446608, 641999, 893216, 1283998, 2567996, 5135992, 10271984, 20543968]

約数ペア:

[(1, 20543968), (2, 10271984), (4, 5135992), (8, 2567996), (16, 1283998), (23, 893216), (32, 641999), (46, 446608), (92, 223304), (103, 199456), (184, 111652), (206, 99728), (271, 75808), (368, 55826), (412, 49864), (542, 37904), (736, 27913), (824, 24932), (1084, 18952), (1648, 12466), (2168, 9476), (2369, 8672), (3296, 6233), (4336, 4738)]