21041488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101161}}^1$

素因数の和:101182

約数の個数: 20

約数和(自身を含む): 43904308

約数和(自身を除く): 22862820

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101161, 202322, 404644, 809288, 1315093, 1618576, 2630186, 5260372, 10520744, 21041488]

約数ペア:

[(1, 21041488), (2, 10520744), (4, 5260372), (8, 2630186), (13, 1618576), (16, 1315093), (26, 809288), (52, 404644), (104, 202322), (208, 101161)]