21159404

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11279}}^1$

素因数の和:11357

約数の個数: 24

約数和(自身を含む): 42954240

約数和(自身を除く): 21794836

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 11279, 22558, 45116, 78953, 157906, 315812, 755693, 1511386, 3022772, 5289851, 10579702, 21159404]

約数ペア:

[(1, 21159404), (2, 10579702), (4, 5289851), (7, 3022772), (14, 1511386), (28, 755693), (67, 315812), (134, 157906), (268, 78953), (469, 45116), (938, 22558), (1876, 11279)]