20165553

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{7753}}^1$

素因数の和:7793

約数の個数: 18

約数和(自身を含む): 30946214

約数和(自身を除く): 10780661

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 7753, 23259, 69777, 131801, 395403, 1186209, 2240617, 6721851, 20165553]

約数ペア:

[(1, 20165553), (3, 6721851), (9, 2240617), (17, 1186209), (51, 395403), (153, 131801), (289, 69777), (867, 23259), (2601, 7753)]