21209434

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{10531}}^1$

素因数の和:10605

約数の個数: 16

約数和(自身を含む): 34123680

約数和(自身を除く): 12914246

約数列:

[1, 2, 19, 38, 53, 106, 1007, 2014, 10531, 21062, 200089, 400178, 558143, 1116286, 10604717, 21209434]

約数ペア:

[(1, 21209434), (2, 10604717), (19, 1116286), (38, 558143), (53, 400178), (106, 200089), (1007, 21062), (2014, 10531)]