21565143

素因数分解:

$3^3\times {\mathrm{83}}^1\times {\mathrm{9623}}^1$

素因数の和:9715

約数の個数: 16

約数和(自身を含む): 32336640

約数和(自身を除く): 10771497

約数列:

[1, 3, 9, 27, 83, 249, 747, 2241, 9623, 28869, 86607, 259821, 798709, 2396127, 7188381, 21565143]

約数ペア:

[(1, 21565143), (3, 7188381), (9, 2396127), (27, 798709), (83, 259821), (249, 86607), (747, 28869), (2241, 9623)]