20855528073

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{8018273}}^1$

素因数の和:8018313

約数の個数: 18

約数和(自身を含む): 32000931534

約数和(自身を除く): 11145403461

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 8018273, 24054819, 72164457, 136310641, 408931923, 1226795769, 2317280897, 6951842691, 20855528073]

約数ペア:

[(1, 20855528073), (3, 6951842691), (9, 2317280897), (17, 1226795769), (51, 408931923), (153, 136310641), (289, 72164457), (867, 24054819), (2601, 8018273)]