21077567

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{271}}^2$

素因数の和:590

約数の個数: 12

約数和(自身を含む): 24767568

約数和(自身を除く): 3690001

約数列:

[1, 7, 41, 271, 287, 1897, 11111, 73441, 77777, 514087, 3011081, 21077567]

約数ペア:

[(1, 21077567), (7, 3011081), (41, 514087), (271, 77777), (287, 73441), (1897, 11111)]