18928413

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{2917}}^1$

素因数の和:3033

約数の個数: 24

約数和(自身を含む): 31561088

約数和(自身を除く): 12632675

約数列:

[1, 3, 7, 9, 21, 63, 103, 309, 721, 927, 2163, 2917, 6489, 8751, 20419, 26253, 61257, 183771, 300451, 901353, 2103157, 2704059, 6309471, 18928413]

約数ペア:

[(1, 18928413), (3, 6309471), (7, 2704059), (9, 2103157), (21, 901353), (63, 300451), (103, 183771), (309, 61257), (721, 26253), (927, 20419), (2163, 8751), (2917, 6489)]