20855913

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{607}}^1\times {\mathrm{881}}^1$

素因数の和:1504

約数の個数: 16

約数和(自身を含む): 30030336

約数和(自身を除く): 9174423

約数列:

[1, 3, 13, 39, 607, 881, 1821, 2643, 7891, 11453, 23673, 34359, 534767, 1604301, 6951971, 20855913]

約数ペア:

[(1, 20855913), (3, 6951971), (13, 1604301), (39, 534767), (607, 34359), (881, 23673), (1821, 11453), (2643, 7891)]