21049826

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{10091}}^1$

素因数の和:10249

約数の個数: 16

約数和(自身を含む): 36331200

約数和(自身を除く): 15281374

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 10091, 20182, 70637, 141274, 1503559, 3007118, 10524913, 21049826]

約数ペア:

[(1, 21049826), (2, 10524913), (7, 3007118), (14, 1503559), (149, 141274), (298, 70637), (1043, 20182), (2086, 10091)]