20990024

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2459}}^1$

素因数の和:2573

約数の個数: 32

約数和(自身を含む): 43394400

約数和(自身を除く): 22404376

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 194, 388, 776, 1067, 2134, 2459, 4268, 4918, 8536, 9836, 19672, 27049, 54098, 108196, 216392, 238523, 477046, 954092, 1908184, 2623753, 5247506, 10495012, 20990024]

約数ペア:

[(1, 20990024), (2, 10495012), (4, 5247506), (8, 2623753), (11, 1908184), (22, 954092), (44, 477046), (88, 238523), (97, 216392), (194, 108196), (388, 54098), (776, 27049), (1067, 19672), (2134, 9836), (2459, 8536), (4268, 4918)]