20259189

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7789}}^1$

素因数の和:7829

約数の個数: 18

約数和(自身を含む): 31089890

約数和(自身を除く): 10830701

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7789, 23367, 70101, 132413, 397239, 1191717, 2251021, 6753063, 20259189]

約数ペア:

[(1, 20259189), (3, 6753063), (9, 2251021), (17, 1191717), (51, 397239), (153, 132413), (289, 70101), (867, 23367), (2601, 7789)]