19774707

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 26915328

約数和(自身を除く): 7140621

約数列:

[1, 3, 71, 213, 263, 353, 789, 1059, 18673, 25063, 56019, 75189, 92839, 278517, 6591569, 19774707]

約数ペア:

[(1, 19774707), (3, 6591569), (71, 278517), (213, 92839), (263, 75189), (353, 56019), (789, 25063), (1059, 18673)]