209519518

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{26249}}^1$

素因数の和:26571

約数の個数: 16

約数和(自身を含む): 339570000

約数和(自身を除く): 130050482

約数列:

[1, 2, 13, 26, 307, 614, 3991, 7982, 26249, 52498, 341237, 682474, 8058443, 16116886, 104759759, 209519518]

約数ペア:

[(1, 209519518), (2, 104759759), (13, 16116886), (26, 8058443), (307, 682474), (614, 341237), (3991, 52498), (7982, 26249)]