20996986

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8419}}^1$

素因数の和:8493

約数の個数: 16

約数和(自身を含む): 33343200

約数和(自身を除く): 12346214

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 8419, 16838, 244151, 362017, 488302, 724034, 10498493, 20996986]

約数ペア:

[(1, 20996986), (2, 10498493), (29, 724034), (43, 488302), (58, 362017), (86, 244151), (1247, 16838), (2494, 8419)]