21566534

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{13807}}^1$

素因数の和:13891

約数の個数: 16

約数和(自身を含む): 35790336

約数和(自身を除く): 14223802

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 13807, 27614, 151877, 303754, 980297, 1960594, 10783267, 21566534]

約数ペア:

[(1, 21566534), (2, 10783267), (11, 1960594), (22, 980297), (71, 303754), (142, 151877), (781, 27614), (1562, 13807)]