639773181

素因数分解:

$3^3\times {\mathrm{1153}}^1\times {\mathrm{20551}}^1$

素因数の和:21713

約数の個数: 16

約数和(自身を含む): 948680320

約数和(自身を除く): 308907139

約数列:

[1, 3, 9, 27, 1153, 3459, 10377, 20551, 31131, 61653, 184959, 554877, 23695303, 71085909, 213257727, 639773181]

約数ペア:

[(1, 639773181), (3, 213257727), (9, 71085909), (27, 23695303), (1153, 554877), (3459, 184959), (10377, 61653), (20551, 31131)]