205965621

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{43261}}^1$

素因数の和:43313

約数の個数: 18

約数和(自身を含む): 311010518

約数和(自身を除く): 105044897

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 43261, 129783, 389349, 995003, 2985009, 8955027, 22885069, 68655207, 205965621]

約数ペア:

[(1, 205965621), (3, 68655207), (9, 22885069), (23, 8955027), (69, 2985009), (207, 995003), (529, 389349), (1587, 129783), (4761, 43261)]