20556752

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{29879}}^1$

素因数の和:29930

約数の個数: 20

約数和(自身を含む): 40756320

約数和(自身を除く): 20199568

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 29879, 59758, 119516, 239032, 478064, 1284797, 2569594, 5139188, 10278376, 20556752]

約数ペア:

[(1, 20556752), (2, 10278376), (4, 5139188), (8, 2569594), (16, 1284797), (43, 478064), (86, 239032), (172, 119516), (344, 59758), (688, 29879)]