18749991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20903}}^1$

素因数の和:20942

約数の個数: 16

約数和(自身を含む): 28094976

約数和(自身を除く): 9344985

約数列:

[1, 3, 13, 23, 39, 69, 299, 897, 20903, 62709, 271739, 480769, 815217, 1442307, 6249997, 18749991]

約数ペア:

[(1, 18749991), (3, 6249997), (13, 1442307), (23, 815217), (39, 480769), (69, 271739), (299, 62709), (897, 20903)]