20487272

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{196993}}^1$

素因数の和:197012

約数の個数: 16

約数和(自身を含む): 41368740

約数和(自身を除く): 20881468

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 196993, 393986, 787972, 1575944, 2560909, 5121818, 10243636, 20487272]

約数ペア:

[(1, 20487272), (2, 10243636), (4, 5121818), (8, 2560909), (13, 1575944), (26, 787972), (52, 393986), (104, 196993)]