20945709

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11243}}^1$

素因数の和:11278

約数の個数: 20

約数和(自身を含む): 32652576

約数和(自身を除く): 11706867

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11243, 33729, 101187, 258589, 303561, 775767, 910683, 2327301, 6981903, 20945709]

約数ペア:

[(1, 20945709), (3, 6981903), (9, 2327301), (23, 910683), (27, 775767), (69, 303561), (81, 258589), (207, 101187), (621, 33729), (1863, 11243)]