19321521

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{887}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 26469504

約数和(自身を除く): 7147983

約数列:

[1, 3, 53, 137, 159, 411, 887, 2661, 7261, 21783, 47011, 121519, 141033, 364557, 6440507, 19321521]

約数ペア:

[(1, 19321521), (3, 6440507), (53, 364557), (137, 141033), (159, 121519), (411, 47011), (887, 21783), (2661, 7261)]