18846723

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{4421}}^1$

素因数の和:4467

約数の個数: 24

約数和(自身を含む): 30246480

約数和(自身を除く): 11399757

約数列:

[1, 3, 7, 21, 29, 49, 87, 147, 203, 609, 1421, 4263, 4421, 13263, 30947, 92841, 128209, 216629, 384627, 649887, 897463, 2692389, 6282241, 18846723]

約数ペア:

[(1, 18846723), (3, 6282241), (7, 2692389), (21, 897463), (29, 649887), (49, 384627), (87, 216629), (147, 128209), (203, 92841), (609, 30947), (1421, 13263), (4263, 4421)]