257208909

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{35531}}^1$

素因数の和:35680

約数の個数: 16

約数和(自身を含む): 363847680

約数和(自身を除く): 106638771

約数列:

[1, 3, 19, 57, 127, 381, 2413, 7239, 35531, 106593, 675089, 2025267, 4512437, 13537311, 85736303, 257208909]

約数ペア:

[(1, 257208909), (3, 85736303), (19, 13537311), (57, 4512437), (127, 2025267), (381, 675089), (2413, 106593), (7239, 35531)]