21587523

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{541}}^1$

素因数の和:874

約数の個数: 16

約数和(自身を含む): 29554176

約数和(自身を除く): 7966653

約数列:

[1, 3, 47, 141, 283, 541, 849, 1623, 13301, 25427, 39903, 76281, 153103, 459309, 7195841, 21587523]

約数ペア:

[(1, 21587523), (3, 7195841), (47, 459309), (141, 153103), (283, 76281), (541, 39903), (849, 25427), (1623, 13301)]