16191981

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{15377}}^1$

素因数の和:15402

約数の個数: 20

約数和(自身を含む): 26050332

約数和(自身を除く): 9858351

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 15377, 46131, 138393, 199901, 415179, 599703, 1245537, 1799109, 5397327, 16191981]

約数ペア:

[(1, 16191981), (3, 5397327), (9, 1799109), (13, 1245537), (27, 599703), (39, 415179), (81, 199901), (117, 138393), (351, 46131), (1053, 15377)]