21465927

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4799}}^1$

素因数の和:4883

約数の個数: 24

約数和(自身を含む): 35942400

約数和(自身を除く): 14476473

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4799, 14397, 33593, 43191, 100779, 302337, 340729, 1022187, 2385103, 3066561, 7155309, 21465927]

約数ペア:

[(1, 21465927), (3, 7155309), (7, 3066561), (9, 2385103), (21, 1022187), (63, 340729), (71, 302337), (213, 100779), (497, 43191), (639, 33593), (1491, 14397), (4473, 4799)]