21547743

素因数分解:

$3^1\times 7^1\times {\mathrm{743}}^1\times {\mathrm{1381}}^1$

素因数の和:2134

約数の個数: 16

約数和(自身を含む): 32902656

約数和(自身を除く): 11354913

約数列:

[1, 3, 7, 21, 743, 1381, 2229, 4143, 5201, 9667, 15603, 29001, 1026083, 3078249, 7182581, 21547743]

約数ペア:

[(1, 21547743), (3, 7182581), (7, 3078249), (21, 1026083), (743, 29001), (1381, 15603), (2229, 9667), (4143, 5201)]