189881811

素因数分解:

$3^2\times 7^2\times {\mathrm{430571}}^1$

素因数の和:430591

約数の個数: 18

約数和(自身を含む): 319053852

約数和(自身を除く): 129172041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 430571, 1291713, 3013997, 3875139, 9041991, 21097979, 27125973, 63293937, 189881811]

約数ペア:

[(1, 189881811), (3, 63293937), (7, 27125973), (9, 21097979), (21, 9041991), (49, 3875139), (63, 3013997), (147, 1291713), (441, 430571)]