28259204

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{173}}^1\times {\mathrm{421}}^1$

素因数の和:695

約数の個数: 24

約数和(自身を含む): 50371608

約数和(自身を除く): 22112404

約数列:

[1, 2, 4, 97, 173, 194, 346, 388, 421, 692, 842, 1684, 16781, 33562, 40837, 67124, 72833, 81674, 145666, 163348, 291332, 7064801, 14129602, 28259204]

約数ペア:

[(1, 28259204), (2, 14129602), (4, 7064801), (97, 291332), (173, 163348), (194, 145666), (346, 81674), (388, 72833), (421, 67124), (692, 40837), (842, 33562), (1684, 16781)]