28928641

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{3823}}^1$

素因数の和:3900

約数の個数: 16

約数和(自身を含む): 35241984

約数和(自身を除く): 6313343

約数列:

[1, 7, 23, 47, 161, 329, 1081, 3823, 7567, 26761, 87929, 179681, 615503, 1257767, 4132663, 28928641]

約数ペア:

[(1, 28928641), (7, 4132663), (23, 1257767), (47, 615503), (161, 179681), (329, 87929), (1081, 26761), (3823, 7567)]