20538921

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{5113}}^1$

素因数の和:5232

約数の個数: 16

約数和(自身を含む): 29783936

約数和(自身を除く): 9245015

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 5113, 15339, 66469, 199407, 526639, 1579917, 6846307, 20538921]

約数ペア:

[(1, 20538921), (3, 6846307), (13, 1579917), (39, 526639), (103, 199407), (309, 66469), (1339, 15339), (4017, 5113)]