19804813

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3541}}^1$

素因数の和:3612

約数の個数: 16

約数和(自身を含む): 24482304

約数和(自身を除く): 4677491

約数列:

[1, 7, 17, 47, 119, 329, 799, 3541, 5593, 24787, 60197, 166427, 421379, 1164989, 2829259, 19804813]

約数ペア:

[(1, 19804813), (7, 2829259), (17, 1164989), (47, 421379), (119, 166427), (329, 60197), (799, 24787), (3541, 5593)]