20559836

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 40018104

約数和(自身を除く): 19458268

約数列:

[1, 2, 4, 11, 22, 44, 107, 121, 214, 242, 397, 428, 484, 794, 1177, 1588, 2354, 4367, 4708, 8734, 12947, 17468, 25894, 42479, 48037, 51788, 84958, 96074, 169916, 192148, 467269, 934538, 1869076, 5139959, 10279918, 20559836]

約数ペア:

[(1, 20559836), (2, 10279918), (4, 5139959), (11, 1869076), (22, 934538), (44, 467269), (107, 192148), (121, 169916), (214, 96074), (242, 84958), (397, 51788), (428, 48037), (484, 42479), (794, 25894), (1177, 17468), (1588, 12947), (2354, 8734), (4367, 4708)]