21156267

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{17327}}^1$

素因数の和:17378

約数の個数: 16

約数和(自身を含む): 31606272

約数和(自身を除く): 10450005

約数列:

[1, 3, 11, 33, 37, 111, 407, 1221, 17327, 51981, 190597, 571791, 641099, 1923297, 7052089, 21156267]

約数ペア:

[(1, 21156267), (3, 7052089), (11, 1923297), (33, 641099), (37, 571791), (111, 190597), (407, 51981), (1221, 17327)]