21135282

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{4703}}^1$

素因数の和:4822

約数の個数: 32

約数和(自身を含む): 48771072

約数和(自身を除く): 27635790

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 107, 214, 321, 642, 749, 1498, 2247, 4494, 4703, 9406, 14109, 28218, 32921, 65842, 98763, 197526, 503221, 1006442, 1509663, 3019326, 3522547, 7045094, 10567641, 21135282]

約数ペア:

[(1, 21135282), (2, 10567641), (3, 7045094), (6, 3522547), (7, 3019326), (14, 1509663), (21, 1006442), (42, 503221), (107, 197526), (214, 98763), (321, 65842), (642, 32921), (749, 28218), (1498, 14109), (2247, 9406), (4494, 4703)]