20617795

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 27751248

約数和(自身を除く): 7133453

約数列:

[1, 5, 11, 53, 55, 121, 265, 583, 605, 643, 2915, 3215, 6413, 7073, 32065, 34079, 35365, 77803, 170395, 374869, 389015, 1874345, 4123559, 20617795]

約数ペア:

[(1, 20617795), (5, 4123559), (11, 1874345), (53, 389015), (55, 374869), (121, 170395), (265, 77803), (583, 35365), (605, 34079), (643, 32065), (2915, 7073), (3215, 6413)]