78902001

素因数分解:

$3^2\times {\mathrm{53}}^2\times {\mathrm{3121}}^1$

素因数の和:3233

約数の個数: 18

約数和(自身を含む): 116197718

約数和(自身を除く): 37295717

約数列:

[1, 3, 9, 53, 159, 477, 2809, 3121, 8427, 9363, 25281, 28089, 165413, 496239, 1488717, 8766889, 26300667, 78902001]

約数ペア:

[(1, 78902001), (3, 26300667), (9, 8766889), (53, 1488717), (159, 496239), (477, 165413), (2809, 28089), (3121, 25281), (8427, 9363)]