20852421

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{613}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 31829760

約数和(自身を除く): 10977339

約数列:

[1, 3, 17, 23, 29, 51, 69, 87, 391, 493, 613, 667, 1173, 1479, 1839, 2001, 10421, 11339, 14099, 17777, 31263, 34017, 42297, 53331, 239683, 302209, 408871, 719049, 906627, 1226613, 6950807, 20852421]

約数ペア:

[(1, 20852421), (3, 6950807), (17, 1226613), (23, 906627), (29, 719049), (51, 408871), (69, 302209), (87, 239683), (391, 53331), (493, 42297), (613, 34017), (667, 31263), (1173, 17777), (1479, 14099), (1839, 11339), (2001, 10421)]