20813144

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1451}}^1$

素因数の和:1631

約数の個数: 32

約数和(自身を含む): 42863040

約数和(自身を除く): 22049896

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 163, 326, 652, 1304, 1451, 1793, 2902, 3586, 5804, 7172, 11608, 14344, 15961, 31922, 63844, 127688, 236513, 473026, 946052, 1892104, 2601643, 5203286, 10406572, 20813144]

約数ペア:

[(1, 20813144), (2, 10406572), (4, 5203286), (8, 2601643), (11, 1892104), (22, 946052), (44, 473026), (88, 236513), (163, 127688), (326, 63844), (652, 31922), (1304, 15961), (1451, 14344), (1793, 11608), (2902, 7172), (3586, 5804)]