20543427

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{6323}}^1$

素因数の和:6367

約数の個数: 18

約数和(自身を含む): 31322772

約数和(自身を除く): 10779345

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 6323, 18969, 56907, 120137, 360411, 1081233, 2282603, 6847809, 20543427]

約数ペア:

[(1, 20543427), (3, 6847809), (9, 2282603), (19, 1081233), (57, 360411), (171, 120137), (361, 56907), (1083, 18969), (3249, 6323)]