20528222

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71777}}^1$

素因数の和:71803

約数の個数: 16

約数和(自身を含む): 36176112

約数和(自身を除く): 15647890

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 71777, 143554, 789547, 933101, 1579094, 1866202, 10264111, 20528222]

約数ペア:

[(1, 20528222), (2, 10264111), (11, 1866202), (13, 1579094), (22, 933101), (26, 789547), (143, 143554), (286, 71777)]