21120801

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{337}}^1\times {\mathrm{1607}}^1$

素因数の和:1960

約数の個数: 16

約数和(自身を含む): 30436224

約数和(自身を除く): 9315423

約数列:

[1, 3, 13, 39, 337, 1011, 1607, 4381, 4821, 13143, 20891, 62673, 541559, 1624677, 7040267, 21120801]

約数ペア:

[(1, 21120801), (3, 7040267), (13, 1624677), (39, 541559), (337, 62673), (1011, 20891), (1607, 13143), (4381, 4821)]