20521786

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{5347}}^1$

素因数の和:5469

約数の個数: 16

約数和(自身を含む): 32729760

約数和(自身を除く): 12207974

約数列:

[1, 2, 19, 38, 101, 202, 1919, 3838, 5347, 10694, 101593, 203186, 540047, 1080094, 10260893, 20521786]

約数ペア:

[(1, 20521786), (2, 10260893), (19, 1080094), (38, 540047), (101, 203186), (202, 101593), (1919, 10694), (3838, 5347)]