20640598

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25357}}^1$

素因数の和:25407

約数の個数: 16

約数和(自身を含む): 34689744

約数和(自身を除く): 14049146

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25357, 50714, 278927, 557854, 938209, 1876418, 10320299, 20640598]

約数ペア:

[(1, 20640598), (2, 10320299), (11, 1876418), (22, 938209), (37, 557854), (74, 278927), (407, 50714), (814, 25357)]