21084908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21341}}^1$

素因数の和:21377

約数の個数: 24

約数和(自身を含む): 41830320

約数和(自身を除く): 20745412

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21341, 42682, 85364, 277433, 405479, 554866, 810958, 1109732, 1621916, 5271227, 10542454, 21084908]

約数ペア:

[(1, 21084908), (2, 10542454), (4, 5271227), (13, 1621916), (19, 1109732), (26, 810958), (38, 554866), (52, 405479), (76, 277433), (247, 85364), (494, 42682), (988, 21341)]