21390698

素因数分解:

$2^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{3449}}^1$

素因数の和:3901

約数の個数: 16

約数和(自身を含む): 36763200

約数和(自身を除く): 15372502

約数列:

[1, 2, 7, 14, 443, 886, 3101, 3449, 6202, 6898, 24143, 48286, 1527907, 3055814, 10695349, 21390698]

約数ペア:

[(1, 21390698), (2, 10695349), (7, 3055814), (14, 1527907), (443, 48286), (886, 24143), (3101, 6898), (3449, 6202)]