19175121

素因数分解:

$3^2\times 7^2\times {\mathrm{43481}}^1$

素因数の和:43501

約数の個数: 18

約数和(自身を含む): 32220162

約数和(自身を除く): 13045041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 43481, 130443, 304367, 391329, 913101, 2130569, 2739303, 6391707, 19175121]

約数ペア:

[(1, 19175121), (3, 6391707), (7, 2739303), (9, 2130569), (21, 913101), (49, 391329), (63, 304367), (147, 130443), (441, 43481)]