20872964

素因数分解:

$2^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{3533}}^1$

素因数の和:3755

約数の個数: 24

約数和(自身を含む): 41955648

約数和(自身を除く): 21082684

約数列:

[1, 2, 4, 7, 14, 28, 211, 422, 844, 1477, 2954, 3533, 5908, 7066, 14132, 24731, 49462, 98924, 745463, 1490926, 2981852, 5218241, 10436482, 20872964]

約数ペア:

[(1, 20872964), (2, 10436482), (4, 5218241), (7, 2981852), (14, 1490926), (28, 745463), (211, 98924), (422, 49462), (844, 24731), (1477, 14132), (2954, 7066), (3533, 5908)]