28330491

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{19001}}^1$

素因数の和:19082

約数の個数: 16

約数和(自身を含む): 43780608

約数和(自身を除く): 15450117

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 19001, 57003, 133007, 399021, 1349071, 4047213, 9443497, 28330491]

約数ペア:

[(1, 28330491), (3, 9443497), (7, 4047213), (21, 1349071), (71, 399021), (213, 133007), (497, 57003), (1491, 19001)]