21920392

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{210773}}^1$

素因数の和:210792

約数の個数: 16

約数和(自身を含む): 44262540

約数和(自身を除く): 22342148

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 210773, 421546, 843092, 1686184, 2740049, 5480098, 10960196, 21920392]

約数ペア:

[(1, 21920392), (2, 10960196), (4, 5480098), (8, 2740049), (13, 1686184), (26, 843092), (52, 421546), (104, 210773)]