20425653

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7853}}^1$

素因数の和:7893

約数の個数: 18

約数和(自身を含む): 31345314

約数和(自身を除く): 10919661

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7853, 23559, 70677, 133501, 400503, 1201509, 2269517, 6808551, 20425653]

約数ペア:

[(1, 20425653), (3, 6808551), (9, 2269517), (17, 1201509), (51, 400503), (153, 133501), (289, 70677), (867, 23559), (2601, 7853)]