21491206

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{3121}}^1$

素因数の和:3447

約数の個数: 16

約数和(自身を含む): 35291088

約数和(自身を除く): 13799882

約数列:

[1, 2, 11, 22, 313, 626, 3121, 3443, 6242, 6886, 34331, 68662, 976873, 1953746, 10745603, 21491206]

約数ペア:

[(1, 21491206), (2, 10745603), (11, 1953746), (22, 976873), (313, 68662), (626, 34331), (3121, 6886), (3443, 6242)]