20191887

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{42331}}^1$

素因数の和:42390

約数の個数: 12

約数和(自身を含む): 29717064

約数和(自身を除く): 9525177

約数列:

[1, 3, 9, 53, 159, 477, 42331, 126993, 380979, 2243543, 6730629, 20191887]

約数ペア:

[(1, 20191887), (3, 6730629), (9, 2243543), (53, 380979), (159, 126993), (477, 42331)]