20774728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{3769}}^1$

素因数の和:3841

約数の個数: 32

約数和(自身を含む): 42751800

約数和(自身を除く): 21977072

約数列:

[1, 2, 4, 8, 13, 26, 52, 53, 104, 106, 212, 424, 689, 1378, 2756, 3769, 5512, 7538, 15076, 30152, 48997, 97994, 195988, 199757, 391976, 399514, 799028, 1598056, 2596841, 5193682, 10387364, 20774728]

約数ペア:

[(1, 20774728), (2, 10387364), (4, 5193682), (8, 2596841), (13, 1598056), (26, 799028), (52, 399514), (53, 391976), (104, 199757), (106, 195988), (212, 97994), (424, 48997), (689, 30152), (1378, 15076), (2756, 7538), (3769, 5512)]