16921281

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{3167}}^1$

素因数の和:3320

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 7561023

約数列:

[1, 3, 13, 39, 137, 411, 1781, 3167, 5343, 9501, 41171, 123513, 433879, 1301637, 5640427, 16921281]

約数ペア:

[(1, 16921281), (3, 5640427), (13, 1301637), (39, 433879), (137, 123513), (411, 41171), (1781, 9501), (3167, 5343)]