209364729

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{140419}}^1$

素因数の和:140500

約数の個数: 16

約数和(自身を含む): 323527680

約数和(自身を除く): 114162951

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 140419, 421257, 982933, 2948799, 9969749, 29909247, 69788243, 209364729]

約数ペア:

[(1, 209364729), (3, 69788243), (7, 29909247), (21, 9969749), (71, 2948799), (213, 982933), (497, 421257), (1491, 140419)]