28519521

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{157}}^1\times {\mathrm{401}}^1$

素因数の和:712

約数の個数: 16

約数和(自身を含む): 38617728

約数和(自身を除く): 10098207

約数列:

[1, 3, 151, 157, 401, 453, 471, 1203, 23707, 60551, 62957, 71121, 181653, 188871, 9506507, 28519521]

約数ペア:

[(1, 28519521), (3, 9506507), (151, 188871), (157, 181653), (401, 71121), (453, 62957), (471, 60551), (1203, 23707)]