21344463

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2473}}^1$

素因数の和:2623

約数の個数: 24

約数和(自身を含む): 35506848

約数和(自身を除く): 14162385

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2473, 2877, 7419, 8631, 17311, 22257, 51933, 155799, 338801, 1016403, 2371607, 3049209, 7114821, 21344463]

約数ペア:

[(1, 21344463), (3, 7114821), (7, 3049209), (9, 2371607), (21, 1016403), (63, 338801), (137, 155799), (411, 51933), (959, 22257), (1233, 17311), (2473, 8631), (2877, 7419)]