20819596

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7219}}^1$

素因数の和:7333

約数の個数: 24

約数和(自身を含む): 42049280

約数和(自身を除く): 21229684

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7219, 14438, 28876, 50533, 101066, 202132, 743557, 1487114, 2974228, 5204899, 10409798, 20819596]

約数ペア:

[(1, 20819596), (2, 10409798), (4, 5204899), (7, 2974228), (14, 1487114), (28, 743557), (103, 202132), (206, 101066), (412, 50533), (721, 28876), (1442, 14438), (2884, 7219)]