20212311

素因数分解:

$3^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{4987}}^1$

素因数の和:5190

約数の個数: 16

約数和(自身を含む): 30965504

約数和(自身を除く): 10753193

約数列:

[1, 3, 7, 21, 193, 579, 1351, 4053, 4987, 14961, 34909, 104727, 962491, 2887473, 6737437, 20212311]

約数ペア:

[(1, 20212311), (3, 6737437), (7, 2887473), (21, 962491), (193, 104727), (579, 34909), (1351, 14961), (4053, 4987)]