19718613

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{281}}^1$

素因数の和:426

約数の個数: 32

約数和(自身を含む): 30862080

約数和(自身を除く): 11143467

約数列:

[1, 3, 9, 23, 27, 69, 113, 207, 281, 339, 621, 843, 1017, 2529, 2599, 3051, 6463, 7587, 7797, 19389, 23391, 31753, 58167, 70173, 95259, 174501, 285777, 730319, 857331, 2190957, 6572871, 19718613]

約数ペア:

[(1, 19718613), (3, 6572871), (9, 2190957), (23, 857331), (27, 730319), (69, 285777), (113, 174501), (207, 95259), (281, 70173), (339, 58167), (621, 31753), (843, 23391), (1017, 19389), (2529, 7797), (2599, 7587), (3051, 6463)]