20171842173

素因数分解:

$3^2\times 7^1\times {\mathrm{320187971}}^1$

素因数の和:320187984

約数の個数: 12

約数和(自身を含む): 33299549088

約数和(自身を除く): 13127706915

約数列:

[1, 3, 7, 9, 21, 63, 320187971, 960563913, 2241315797, 2881691739, 6723947391, 20171842173]

約数ペア:

[(1, 20171842173), (3, 6723947391), (7, 2881691739), (9, 2241315797), (21, 960563913), (63, 320187971)]