20417589

素因数分解:

$3^5\times {\mathrm{73}}^1\times {\mathrm{1151}}^1$

素因数の和:1239

約数の個数: 24

約数和(自身を含む): 31030272

約数和(自身を除く): 10612683

約数列:

[1, 3, 9, 27, 73, 81, 219, 243, 657, 1151, 1971, 3453, 5913, 10359, 17739, 31077, 84023, 93231, 252069, 279693, 756207, 2268621, 6805863, 20417589]

約数ペア:

[(1, 20417589), (3, 6805863), (9, 2268621), (27, 756207), (73, 279693), (81, 252069), (219, 93231), (243, 84023), (657, 31077), (1151, 17739), (1971, 10359), (3453, 5913)]