21028742

素因数分解:

$2^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{2411}}^1$

素因数の和:2516

約数の個数: 24

約数和(自身を含む): 37120680

約数和(自身を除く): 16091938

約数列:

[1, 2, 7, 14, 49, 89, 98, 178, 623, 1246, 2411, 4361, 4822, 8722, 16877, 33754, 118139, 214579, 236278, 429158, 1502053, 3004106, 10514371, 21028742]

約数ペア:

[(1, 21028742), (2, 10514371), (7, 3004106), (14, 1502053), (49, 429158), (89, 236278), (98, 214579), (178, 118139), (623, 33754), (1246, 16877), (2411, 8722), (4361, 4822)]