20418806

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{4231}}^1$

素因数の和:4379

約数の個数: 16

約数和(自身を含む): 32501760

約数和(自身を除く): 12082954

約数列:

[1, 2, 19, 38, 127, 254, 2413, 4231, 4826, 8462, 80389, 160778, 537337, 1074674, 10209403, 20418806]

約数ペア:

[(1, 20418806), (2, 10209403), (19, 1074674), (38, 537337), (127, 160778), (254, 80389), (2413, 8462), (4231, 4826)]