21854577

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 31215744

約数和(自身を除く): 9361167

約数列:

[1, 3, 23, 47, 69, 141, 293, 529, 879, 1081, 1587, 3243, 6739, 13771, 20217, 24863, 41313, 74589, 154997, 316733, 464991, 950199, 7284859, 21854577]

約数ペア:

[(1, 21854577), (3, 7284859), (23, 950199), (47, 464991), (69, 316733), (141, 154997), (293, 74589), (529, 41313), (879, 24863), (1081, 20217), (1587, 13771), (3243, 6739)]