21178222

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{19867}}^1$

素因数の和:19923

約数の個数: 16

約数和(自身を含む): 35047152

約数和(自身を除く): 13868930

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 19867, 39734, 258271, 516542, 814547, 1629094, 10589111, 21178222]

約数ペア:

[(1, 21178222), (2, 10589111), (13, 1629094), (26, 814547), (41, 516542), (82, 258271), (533, 39734), (1066, 19867)]