18809679

素因数分解:

$3^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 29366400

約数和(自身を除く): 10556721

約数列:

[1, 3, 7, 21, 49, 147, 199, 597, 643, 1393, 1929, 4179, 4501, 9751, 13503, 29253, 31507, 94521, 127957, 383871, 895699, 2687097, 6269893, 18809679]

約数ペア:

[(1, 18809679), (3, 6269893), (7, 2687097), (21, 895699), (49, 383871), (147, 127957), (199, 94521), (597, 31507), (643, 29253), (1393, 13503), (1929, 9751), (4179, 4501)]