21042307

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 32

約数和(自身を含む): 26276544

約数和(自身を除く): 5234237

約数列:

[1, 11, 13, 37, 41, 97, 143, 407, 451, 481, 533, 1067, 1261, 1517, 3589, 3977, 5291, 5863, 13871, 16687, 19721, 39479, 43747, 46657, 51701, 147149, 216931, 513227, 568711, 1618639, 1912937, 21042307]

約数ペア:

[(1, 21042307), (11, 1912937), (13, 1618639), (37, 568711), (41, 513227), (97, 216931), (143, 147149), (407, 51701), (451, 46657), (481, 43747), (533, 39479), (1067, 19721), (1261, 16687), (1517, 13871), (3589, 5863), (3977, 5291)]