19168731

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{2659}}^1$

素因数の和:2760

約数の個数: 20

約数和(自身を含む): 28967400

約数和(自身を除く): 9798669

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 2659, 7209, 7977, 23931, 71793, 215379, 236651, 709953, 2129859, 6389577, 19168731]

約数ペア:

[(1, 19168731), (3, 6389577), (9, 2129859), (27, 709953), (81, 236651), (89, 215379), (267, 71793), (801, 23931), (2403, 7977), (2659, 7209)]