20866521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{2357}}^1$

素因数の和:2600

約数の個数: 16

約数和(自身を含む): 30106944

約数和(自身を除く): 9240423

約数列:

[1, 3, 13, 39, 227, 681, 2357, 2951, 7071, 8853, 30641, 91923, 535039, 1605117, 6955507, 20866521]

約数ペア:

[(1, 20866521), (3, 6955507), (13, 1605117), (39, 535039), (227, 91923), (681, 30641), (2357, 8853), (2951, 7071)]