21238196

素因数分解:

$2^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{11321}}^1$

素因数の和:11399

約数の個数: 24

約数和(自身を含む): 43114176

約数和(自身を除く): 21875980

約数列:

[1, 2, 4, 7, 14, 28, 67, 134, 268, 469, 938, 1876, 11321, 22642, 45284, 79247, 158494, 316988, 758507, 1517014, 3034028, 5309549, 10619098, 21238196]

約数ペア:

[(1, 21238196), (2, 10619098), (4, 5309549), (7, 3034028), (14, 1517014), (28, 758507), (67, 316988), (134, 158494), (268, 79247), (469, 45284), (938, 22642), (1876, 11321)]