19669473

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1747}}^1$

素因数の和:1898

約数の個数: 20

約数和(自身を含む): 29611120

約数和(自身を除く): 9941647

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1747, 3753, 5241, 11259, 15723, 47169, 141507, 242833, 728499, 2185497, 6556491, 19669473]

約数ペア:

[(1, 19669473), (3, 6556491), (9, 2185497), (27, 728499), (81, 242833), (139, 141507), (417, 47169), (1251, 15723), (1747, 11259), (3753, 5241)]