19348713

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8237}}^1$

素因数の和:8278

約数の個数: 20

約数和(自身を含む): 29903940

約数和(自身を除く): 10555227

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8237, 24711, 74133, 222399, 238873, 667197, 716619, 2149857, 6449571, 19348713]

約数ペア:

[(1, 19348713), (3, 6449571), (9, 2149857), (27, 716619), (29, 667197), (81, 238873), (87, 222399), (261, 74133), (783, 24711), (2349, 8237)]