20370988

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{653}}^1\times {\mathrm{709}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 39004560

約数和(自身を除く): 18633572

約数列:

[1, 2, 4, 11, 22, 44, 653, 709, 1306, 1418, 2612, 2836, 7183, 7799, 14366, 15598, 28732, 31196, 462977, 925954, 1851908, 5092747, 10185494, 20370988]

約数ペア:

[(1, 20370988), (2, 10185494), (4, 5092747), (11, 1851908), (22, 925954), (44, 462977), (653, 31196), (709, 28732), (1306, 15598), (1418, 14366), (2612, 7799), (2836, 7183)]