20173648

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1381}}^1$

素因数の和:1483

約数の個数: 40

約数和(自身を含む): 43184736

約数和(自身を除く): 23011088

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1328, 1381, 1826, 2762, 3652, 5524, 7304, 11048, 14608, 15191, 22096, 30382, 60764, 114623, 121528, 229246, 243056, 458492, 916984, 1260853, 1833968, 2521706, 5043412, 10086824, 20173648]

約数ペア:

[(1, 20173648), (2, 10086824), (4, 5043412), (8, 2521706), (11, 1833968), (16, 1260853), (22, 916984), (44, 458492), (83, 243056), (88, 229246), (166, 121528), (176, 114623), (332, 60764), (664, 30382), (913, 22096), (1328, 15191), (1381, 14608), (1826, 11048), (2762, 7304), (3652, 5524)]