21387804

素因数分解:

$2^2\times 3^1\times {\mathrm{211}}^1\times {\mathrm{8447}}^1$

素因数の和:8665

約数の個数: 24

約数和(自身を含む): 50147328

約数和(自身を除く): 28759524

約数列:

[1, 2, 3, 4, 6, 12, 211, 422, 633, 844, 1266, 2532, 8447, 16894, 25341, 33788, 50682, 101364, 1782317, 3564634, 5346951, 7129268, 10693902, 21387804]

約数ペア:

[(1, 21387804), (2, 10693902), (3, 7129268), (4, 5346951), (6, 3564634), (12, 1782317), (211, 101364), (422, 50682), (633, 33788), (844, 25341), (1266, 16894), (2532, 8447)]