16978869

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{521}}^1$

素因数の和:618

約数の個数: 32

約数和(自身を含む): 27060480

約数和(自身を除く): 10081611

約数列:

[1, 3, 9, 17, 27, 51, 71, 153, 213, 459, 521, 639, 1207, 1563, 1917, 3621, 4689, 8857, 10863, 14067, 26571, 32589, 36991, 79713, 110973, 239139, 332919, 628847, 998757, 1886541, 5659623, 16978869]

約数ペア:

[(1, 16978869), (3, 5659623), (9, 1886541), (17, 998757), (27, 628847), (51, 332919), (71, 239139), (153, 110973), (213, 79713), (459, 36991), (521, 32589), (639, 26571), (1207, 14067), (1563, 10863), (1917, 8857), (3621, 4689)]