19896111

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{1997}}^1$

素因数の和:2053

約数の個数: 24

約数和(自身を含む): 30545424

約数和(自身を除く): 10649313

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 369, 1107, 1997, 3321, 5991, 9963, 17973, 53919, 81877, 161757, 245631, 485271, 736893, 2210679, 6632037, 19896111]

約数ペア:

[(1, 19896111), (3, 6632037), (9, 2210679), (27, 736893), (41, 485271), (81, 245631), (123, 161757), (243, 81877), (369, 53919), (1107, 17973), (1997, 9963), (3321, 5991)]