21000913307

素因数分解:

${\mathrm{11}}^3\times {\mathrm{1997}}^1\times {\mathrm{7901}}^1$

素因数の和:9931

約数の個数: 16

約数和(自身を含む): 23113918944

約数和(自身を除く): 2113005637

約数列:

[1, 11, 121, 1331, 1997, 7901, 21967, 86911, 241637, 956021, 2658007, 10516231, 15778297, 173561267, 1909173937, 21000913307]

約数ペア:

[(1, 21000913307), (11, 1909173937), (121, 173561267), (1331, 15778297), (1997, 10516231), (7901, 2658007), (21967, 956021), (86911, 241637)]