6689991

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{28961}}^1$

素因数の和:28982

約数の個数: 16

約数和(自身を含む): 11121408

約数和(自身を除く): 4431417

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 28961, 86883, 202727, 318571, 608181, 955713, 2229997, 6689991]

約数ペア:

[(1, 6689991), (3, 2229997), (7, 955713), (11, 608181), (21, 318571), (33, 202727), (77, 86883), (231, 28961)]