21594881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{283}}^1\times {\mathrm{991}}^1$

素因数の和:1292

約数の個数: 16

約数和(自身を含む): 27045888

約数和(自身を除く): 5451007

約数列:

[1, 7, 11, 77, 283, 991, 1981, 3113, 6937, 10901, 21791, 76307, 280453, 1963171, 3084983, 21594881]

約数ペア:

[(1, 21594881), (7, 3084983), (11, 1963171), (77, 280453), (283, 76307), (991, 21791), (1981, 10901), (3113, 6937)]