21545421

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1\times {\mathrm{337}}^1$

素因数の和:652

約数の個数: 16

約数和(自身を含む): 29235648

約数和(自身を除く): 7690227

約数列:

[1, 3, 101, 211, 303, 337, 633, 1011, 21311, 34037, 63933, 71107, 102111, 213321, 7181807, 21545421]

約数ペア:

[(1, 21545421), (3, 7181807), (101, 213321), (211, 102111), (303, 71107), (337, 63933), (633, 34037), (1011, 21311)]