28772961

素因数分解:

$3^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{4463}}^1$

素因数の和:4780

約数の個数: 16

約数和(自身を含む): 43997184

約数和(自身を除く): 15224223

約数列:

[1, 3, 7, 21, 307, 921, 2149, 4463, 6447, 13389, 31241, 93723, 1370141, 4110423, 9590987, 28772961]

約数ペア:

[(1, 28772961), (3, 9590987), (7, 4110423), (21, 1370141), (307, 93723), (921, 31241), (2149, 13389), (4463, 6447)]