21125930

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3391}}^1$

素因数の和:3494

約数の個数: 32

約数和(自身を含む): 43960320

約数和(自身を除く): 22834390

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 89, 178, 445, 623, 890, 1246, 3115, 3391, 6230, 6782, 16955, 23737, 33910, 47474, 118685, 237370, 301799, 603598, 1508995, 2112593, 3017990, 4225186, 10562965, 21125930]

約数ペア:

[(1, 21125930), (2, 10562965), (5, 4225186), (7, 3017990), (10, 2112593), (14, 1508995), (35, 603598), (70, 301799), (89, 237370), (178, 118685), (445, 47474), (623, 33910), (890, 23737), (1246, 16955), (3115, 6782), (3391, 6230)]