20538409917

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{1009}}^1\times {\mathrm{357109}}^1$

素因数の和:358140

約数の個数: 16

約数和(自身を含む): 28854488000

約数和(自身を除く): 8316078083

約数列:

[1, 3, 19, 57, 1009, 3027, 19171, 57513, 357109, 1071327, 6785071, 20355213, 360322981, 1080968943, 6846136639, 20538409917]

約数ペア:

[(1, 20538409917), (3, 6846136639), (19, 1080968943), (57, 360322981), (1009, 20355213), (3027, 6785071), (19171, 1071327), (57513, 357109)]