20561983

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 22974336

約数和(自身を除く): 2412353

約数列:

[1, 13, 47, 73, 461, 611, 949, 3431, 5993, 21667, 33653, 44603, 281671, 437489, 1581691, 20561983]

約数ペア:

[(1, 20561983), (13, 1581691), (47, 437489), (73, 281671), (461, 44603), (611, 33653), (949, 21667), (3431, 5993)]