13420491

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{9001}}^1$

素因数の和:9082

約数の個数: 16

約数和(自身を含む): 20740608

約数和(自身を除く): 7320117

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 9001, 27003, 63007, 189021, 639071, 1917213, 4473497, 13420491]

約数ペア:

[(1, 13420491), (3, 4473497), (7, 1917213), (21, 639071), (71, 189021), (213, 63007), (497, 27003), (1491, 9001)]