28787559

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{991}}^1$

素因数の和:1438

約数の個数: 16

約数和(自身を含む): 40187904

約数和(自身を除く): 11400345

約数列:

[1, 3, 23, 69, 421, 991, 1263, 2973, 9683, 22793, 29049, 68379, 417211, 1251633, 9595853, 28787559]

約数ペア:

[(1, 28787559), (3, 9595853), (23, 1251633), (69, 417211), (421, 68379), (991, 29049), (1263, 22793), (2973, 9683)]