21784742

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{53657}}^1$

素因数の和:53695

約数の個数: 16

約数和(自身を含む): 38633760

約数和(自身を除く): 16849018

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 53657, 107314, 375599, 751198, 1556053, 3112106, 10892371, 21784742]

約数ペア:

[(1, 21784742), (2, 10892371), (7, 3112106), (14, 1556053), (29, 751198), (58, 375599), (203, 107314), (406, 53657)]