21983185

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20261}}^1$

素因数の和:20304

約数の個数: 16

約数和(自身を含む): 31122432

約数和(自身を除く): 9139247

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 20261, 101305, 141827, 628091, 709135, 3140455, 4396637, 21983185]

約数ペア:

[(1, 21983185), (5, 4396637), (7, 3140455), (31, 709135), (35, 628091), (155, 141827), (217, 101305), (1085, 20261)]