20979243

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{11261}}^1$

素因数の和:11296

約数の個数: 20

約数和(自身を含む): 32704848

約数和(自身を除く): 11725605

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 11261, 33783, 101349, 259003, 304047, 777009, 912141, 2331027, 6993081, 20979243]

約数ペア:

[(1, 20979243), (3, 6993081), (9, 2331027), (23, 912141), (27, 777009), (69, 304047), (81, 259003), (207, 101349), (621, 33783), (1863, 11261)]