21859227

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{20759}}^1$

素因数の和:20784

約数の個数: 20

約数和(自身を含む): 35167440

約数和(自身を除く): 13308213

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 20759, 62277, 186831, 269867, 560493, 809601, 1681479, 2428803, 7286409, 21859227]

約数ペア:

[(1, 21859227), (3, 7286409), (9, 2428803), (13, 1681479), (27, 809601), (39, 560493), (81, 269867), (117, 186831), (351, 62277), (1053, 20759)]