19911597

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{499}}^1$

素因数の和:832

約数の個数: 16

約数和(自身を含む): 27264000

約数和(自身を除く): 7352403

約数列:

[1, 3, 47, 141, 283, 499, 849, 1497, 13301, 23453, 39903, 70359, 141217, 423651, 6637199, 19911597]

約数ペア:

[(1, 19911597), (3, 6637199), (47, 423651), (141, 141217), (283, 70359), (499, 39903), (849, 23453), (1497, 13301)]