21717266

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1619}}^1$

素因数の和:1993

約数の個数: 16

約数和(自身を含む): 34408800

約数和(自身を除く): 12691534

約数列:

[1, 2, 19, 38, 353, 706, 1619, 3238, 6707, 13414, 30761, 61522, 571507, 1143014, 10858633, 21717266]

約数ペア:

[(1, 21717266), (2, 10858633), (19, 1143014), (38, 571507), (353, 61522), (706, 30761), (1619, 13414), (3238, 6707)]