20161261

素因数分解:

${\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1$

素因数の和:384

約数の個数: 16

約数和(自身を含む): 21980160

約数和(自身を除く): 1818899

約数列:

[1, 19, 47, 107, 211, 893, 2033, 4009, 5029, 9917, 22577, 95551, 188423, 428963, 1061119, 20161261]

約数ペア:

[(1, 20161261), (19, 1061119), (47, 428963), (107, 188423), (211, 95551), (893, 22577), (2033, 9917), (4009, 5029)]