668399809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{19333}}^1$

素因数の和:19800

約数の個数: 16

約数和(自身を含む): 835228800

約数和(自身を除く): 166828991

約数列:

[1, 7, 11, 77, 449, 3143, 4939, 19333, 34573, 135331, 212663, 1488641, 8680517, 60763619, 95485687, 668399809]

約数ペア:

[(1, 668399809), (7, 95485687), (11, 60763619), (77, 8680517), (449, 1488641), (3143, 212663), (4939, 135331), (19333, 34573)]