28509309

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{77261}}^1$

素因数の和:77308

約数の個数: 12

約数和(自身を含む): 42185052

約数和(自身を除く): 13675743

約数列:

[1, 3, 9, 41, 123, 369, 77261, 231783, 695349, 3167701, 9503103, 28509309]

約数ペア:

[(1, 28509309), (3, 9503103), (9, 3167701), (41, 695349), (123, 231783), (369, 77261)]