20890712

素因数分解:

$2^3\times {\mathrm{523}}^1\times {\mathrm{4993}}^1$

素因数の和:5522

約数の個数: 16

約数和(自身を含む): 39252840

約数和(自身を除く): 18362128

約数列:

[1, 2, 4, 8, 523, 1046, 2092, 4184, 4993, 9986, 19972, 39944, 2611339, 5222678, 10445356, 20890712]

約数ペア:

[(1, 20890712), (2, 10445356), (4, 5222678), (8, 2611339), (523, 39944), (1046, 19972), (2092, 9986), (4184, 4993)]