18905961

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{547}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 25962048

約数和(自身を除く): 7056087

約数列:

[1, 3, 41, 123, 281, 547, 843, 1641, 11521, 22427, 34563, 67281, 153707, 461121, 6301987, 18905961]

約数ペア:

[(1, 18905961), (3, 6301987), (41, 461121), (123, 153707), (281, 67281), (547, 34563), (843, 22427), (1641, 11521)]