20449891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{5011}}^1$

素因数の和:5082

約数の個数: 16

約数和(自身を含む): 25982208

約数和(自身を除く): 5532317

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 5011, 35077, 55121, 265583, 385847, 1859081, 2921413, 20449891]

約数ペア:

[(1, 20449891), (7, 2921413), (11, 1859081), (53, 385847), (77, 265583), (371, 55121), (583, 35077), (4081, 5011)]