21921032

素因数分解:

$2^3\times 7^2\times {\mathrm{55921}}^1$

素因数の和:55941

約数の個数: 24

約数和(自身を含む): 47813310

約数和(自身を除く): 25892278

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55921, 111842, 223684, 391447, 447368, 782894, 1565788, 2740129, 3131576, 5480258, 10960516, 21921032]

約数ペア:

[(1, 21921032), (2, 10960516), (4, 5480258), (7, 3131576), (8, 2740129), (14, 1565788), (28, 782894), (49, 447368), (56, 391447), (98, 223684), (196, 111842), (392, 55921)]