21791869

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{229}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 24575040

約数和(自身を除く): 2783171

約数列:

[1, 11, 41, 211, 229, 451, 2321, 2519, 8651, 9389, 48319, 95161, 103279, 531509, 1981079, 21791869]

約数ペア:

[(1, 21791869), (11, 1981079), (41, 531509), (211, 103279), (229, 95161), (451, 48319), (2321, 9389), (2519, 8651)]