18787713

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47087}}^1$

素因数の和:47116

約数の個数: 16

約数和(自身を含む): 30136320

約数和(自身を除く): 11348607

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 47087, 141261, 329609, 894653, 988827, 2683959, 6262571, 18787713]

約数ペア:

[(1, 18787713), (3, 6262571), (7, 2683959), (19, 988827), (21, 894653), (57, 329609), (133, 141261), (399, 47087)]