21759831

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1\times {\mathrm{317}}^1$

素因数の和:615

約数の個数: 24

約数和(自身を含む): 32741280

約数和(自身を除く): 10981449

約数列:

[1, 3, 9, 29, 87, 261, 263, 317, 789, 951, 2367, 2853, 7627, 9193, 22881, 27579, 68643, 82737, 83371, 250113, 750339, 2417759, 7253277, 21759831]

約数ペア:

[(1, 21759831), (3, 7253277), (9, 2417759), (29, 750339), (87, 250113), (261, 83371), (263, 82737), (317, 68643), (789, 27579), (951, 22881), (2367, 9193), (2853, 7627)]