28421997

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{2381}}^1$

素因数の和:2580

約数の個数: 16

約数和(自身を含む): 39788928

約数和(自身を除く): 11366931

約数列:

[1, 3, 23, 69, 173, 519, 2381, 3979, 7143, 11937, 54763, 164289, 411913, 1235739, 9473999, 28421997]

約数ペア:

[(1, 28421997), (3, 9473999), (23, 1235739), (69, 411913), (173, 164289), (519, 54763), (2381, 11937), (3979, 7143)]