1921521

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2473}}^1$

素因数の和:2520

約数の個数: 16

約数和(自身を含む): 3008384

約数和(自身を除く): 1086863

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 2473, 7419, 17311, 51933, 91501, 274503, 640507, 1921521]

約数ペア:

[(1, 1921521), (3, 640507), (7, 274503), (21, 91501), (37, 51933), (111, 17311), (259, 7419), (777, 2473)]