20197863

素因数分解:

$3^3\times 7^1\times {\mathrm{106867}}^1$

素因数の和:106883

約数の個数: 16

約数和(自身を含む): 34197760

約数和(自身を除く): 13999897

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 106867, 320601, 748069, 961803, 2244207, 2885409, 6732621, 20197863]

約数ペア:

[(1, 20197863), (3, 6732621), (7, 2885409), (9, 2244207), (21, 961803), (27, 748069), (63, 320601), (189, 106867)]