78691257

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{42239}}^1$

素因数の和:42274

約数の個数: 20

約数和(自身を含む): 122664960

約数和(自身を除く): 43973703

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 42239, 126717, 380151, 971497, 1140453, 2914491, 3421359, 8743473, 26230419, 78691257]

約数ペア:

[(1, 78691257), (3, 26230419), (9, 8743473), (23, 3421359), (27, 2914491), (69, 1140453), (81, 971497), (207, 380151), (621, 126717), (1863, 42239)]