20210713839

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{39397103}}^1$

素因数の和:39397131

約数の個数: 16

約数和(自身を含む): 31517683200

約数和(自身を除く): 11306969361

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 39397103, 118191309, 354573927, 748544957, 1063721781, 2245634871, 6736904613, 20210713839]

約数ペア:

[(1, 20210713839), (3, 6736904613), (9, 2245634871), (19, 1063721781), (27, 748544957), (57, 354573927), (171, 118191309), (513, 39397103)]