21039359

素因数分解:

${\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 24

約数和(自身を含む): 24514560

約数和(自身を除く): 3475201

約数列:

[1, 11, 31, 71, 79, 121, 341, 781, 869, 2201, 2449, 3751, 5609, 8591, 9559, 24211, 26939, 61699, 173879, 266321, 296329, 678689, 1912669, 21039359]

約数ペア:

[(1, 21039359), (11, 1912669), (31, 678689), (71, 296329), (79, 266321), (121, 173879), (341, 61699), (781, 26939), (869, 24211), (2201, 9559), (2449, 8591), (3751, 5609)]