21987413282

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{30453481}}^1$

素因数の和:30453521

約数の個数: 12

約数和(自身を含む): 34808329926

約数和(自身を除く): 12820916644

約数列:

[1, 2, 19, 38, 361, 722, 30453481, 60906962, 578616139, 1157232278, 10993706641, 21987413282]

約数ペア:

[(1, 21987413282), (2, 10993706641), (19, 1157232278), (38, 578616139), (361, 60906962), (722, 30453481)]