20886008

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18257}}^1$

素因数の和:18287

約数の個数: 32

約数和(自身を含む): 46010160

約数和(自身を除く): 25124152

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18257, 36514, 73028, 146056, 200827, 237341, 401654, 474682, 803308, 949364, 1606616, 1898728, 2610751, 5221502, 10443004, 20886008]

約数ペア:

[(1, 20886008), (2, 10443004), (4, 5221502), (8, 2610751), (11, 1898728), (13, 1606616), (22, 949364), (26, 803308), (44, 474682), (52, 401654), (88, 237341), (104, 200827), (143, 146056), (286, 73028), (572, 36514), (1144, 18257)]