81001389

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{203011}}^1$

素因数の和:203040

約数の個数: 16

約数和(自身を含む): 129927680

約数和(自身を除く): 48926291

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 203011, 609033, 1421077, 3857209, 4263231, 11571627, 27000463, 81001389]

約数ペア:

[(1, 81001389), (3, 27000463), (7, 11571627), (19, 4263231), (21, 3857209), (57, 1421077), (133, 609033), (399, 203011)]