19898217

素因数分解:

$3^4\times {\mathrm{167}}^1\times {\mathrm{1471}}^1$

素因数の和:1650

約数の個数: 20

約数和(自身を含む): 29922816

約数和(自身を除く): 10024599

約数列:

[1, 3, 9, 27, 81, 167, 501, 1471, 1503, 4413, 4509, 13239, 13527, 39717, 119151, 245657, 736971, 2210913, 6632739, 19898217]

約数ペア:

[(1, 19898217), (3, 6632739), (9, 2210913), (27, 736971), (81, 245657), (167, 119151), (501, 39717), (1471, 13527), (1503, 13239), (4413, 4509)]