18846821

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2389}}^1$

素因数の和:2433

約数の個数: 16

約数和(自身を含む): 22944000

約数和(自身を除く): 4097179

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2389, 7889, 16723, 54947, 117061, 384629, 819427, 2692403, 18846821]

約数ペア:

[(1, 18846821), (7, 2692403), (23, 819427), (49, 384629), (161, 117061), (343, 54947), (1127, 16723), (2389, 7889)]