20477864

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2399}}^1$

素因数の和:2513

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 21858136

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2399, 4268, 4798, 8536, 9596, 19192, 26389, 52778, 105556, 211112, 232703, 465406, 930812, 1861624, 2559733, 5119466, 10238932, 20477864]

約数ペア:

[(1, 20477864), (2, 10238932), (4, 5119466), (8, 2559733), (11, 1861624), (22, 930812), (44, 465406), (88, 232703), (97, 211112), (194, 105556), (388, 52778), (776, 26389), (1067, 19192), (2134, 9596), (2399, 8536), (4268, 4798)]