20207509

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3613}}^1$

素因数の和:3684

約数の個数: 16

約数和(自身を含む): 24979968

約数和(自身を除く): 4772459

約数列:

[1, 7, 17, 47, 119, 329, 799, 3613, 5593, 25291, 61421, 169811, 429947, 1188677, 2886787, 20207509]

約数ペア:

[(1, 20207509), (7, 2886787), (17, 1188677), (47, 429947), (119, 169811), (329, 61421), (799, 25291), (3613, 5593)]