16689981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{72251}}^1$

素因数の和:72272

約数の個数: 16

約数和(自身を含む): 27744768

約数和(自身を除く): 11054787

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 72251, 216753, 505757, 794761, 1517271, 2384283, 5563327, 16689981]

約数ペア:

[(1, 16689981), (3, 5563327), (7, 2384283), (11, 1517271), (21, 794761), (33, 505757), (77, 216753), (231, 72251)]