686220938

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{168109}}^1$

素因数の和:168281

約数の個数: 16

約数和(自身を含む): 1115577960

約数和(自身を除く): 429357022

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 168109, 336218, 2185417, 4370834, 26393113, 52786226, 343110469, 686220938]

約数ペア:

[(1, 686220938), (2, 343110469), (13, 52786226), (26, 26393113), (157, 4370834), (314, 2185417), (2041, 336218), (4082, 168109)]