18925569

素因数分解:

$3^6\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2028

約数の個数: 28

約数和(自身を含む): 30573396

約数和(自身を除く): 11647827

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 729, 1053, 1997, 3159, 5991, 9477, 17973, 25961, 53919, 77883, 161757, 233649, 485271, 700947, 1455813, 2102841, 6308523, 18925569]

約数ペア:

[(1, 18925569), (3, 6308523), (9, 2102841), (13, 1455813), (27, 700947), (39, 485271), (81, 233649), (117, 161757), (243, 77883), (351, 53919), (729, 25961), (1053, 17973), (1997, 9477), (3159, 5991)]