213426315

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{206209}}^1$

素因数の和:206243

約数の個数: 24

約数和(自身を含む): 386025120

約数和(自身を除く): 172598805

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 206209, 618627, 1031045, 1855881, 3093135, 4742807, 9279405, 14228421, 23714035, 42685263, 71142105, 213426315]

約数ペア:

[(1, 213426315), (3, 71142105), (5, 42685263), (9, 23714035), (15, 14228421), (23, 9279405), (45, 4742807), (69, 3093135), (115, 1855881), (207, 1031045), (345, 618627), (1035, 206209)]