208782021

素因数分解:

$3^1\times 7^1\times {\mathrm{2659}}^1\times {\mathrm{3739}}^1$

素因数の和:6408

約数の個数: 16

約数和(自身を含む): 318348800

約数和(自身を除く): 109566779

約数列:

[1, 3, 7, 21, 2659, 3739, 7977, 11217, 18613, 26173, 55839, 78519, 9942001, 29826003, 69594007, 208782021]

約数ペア:

[(1, 208782021), (3, 69594007), (7, 29826003), (21, 9942001), (2659, 78519), (3739, 55839), (7977, 26173), (11217, 18613)]