21021208

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{202127}}^1$

素因数の和:202146

約数の個数: 16

約数和(自身を含む): 42446880

約数和(自身を除く): 21425672

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 202127, 404254, 808508, 1617016, 2627651, 5255302, 10510604, 21021208]

約数ペア:

[(1, 21021208), (2, 10510604), (4, 5255302), (8, 2627651), (13, 1617016), (26, 808508), (52, 404254), (104, 202127)]