21123627

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18979}}^1$

素因数の和:19042

約数の個数: 16

約数和(自身を含む): 32797440

約数和(自身を除く): 11673813

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18979, 56937, 132853, 398559, 1005887, 3017661, 7041209, 21123627]

約数ペア:

[(1, 21123627), (3, 7041209), (7, 3017661), (21, 1005887), (53, 398559), (159, 132853), (371, 56937), (1113, 18979)]