20147921721

素因数分解:

$3^3\times {\mathrm{9967}}^1\times {\mathrm{74869}}^1$

素因数の和:84845

約数の個数: 16

約数和(自身を含む): 29852166400

約数和(自身を除く): 9704244679

約数列:

[1, 3, 9, 27, 9967, 29901, 74869, 89703, 224607, 269109, 673821, 2021463, 746219323, 2238657969, 6715973907, 20147921721]

約数ペア:

[(1, 20147921721), (3, 6715973907), (9, 2238657969), (27, 746219323), (9967, 2021463), (29901, 673821), (74869, 269109), (89703, 224607)]