199907781

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{5441}}^1$

素因数の和:5812

約数の個数: 16

約数和(自身を含む): 274625088

約数和(自身を除く): 74717307

約数列:

[1, 3, 37, 111, 331, 993, 5441, 12247, 16323, 36741, 201317, 603951, 1800971, 5402913, 66635927, 199907781]

約数ペア:

[(1, 199907781), (3, 66635927), (37, 5402913), (111, 1800971), (331, 603951), (993, 201317), (5441, 36741), (12247, 16323)]