21037793

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{1889}}^1$

素因数の和:1976

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 4242847

約数列:

[1, 7, 37, 43, 259, 301, 1591, 1889, 11137, 13223, 69893, 81227, 489251, 568589, 3005399, 21037793]

約数ペア:

[(1, 21037793), (7, 3005399), (37, 568589), (43, 489251), (259, 81227), (301, 69893), (1591, 13223), (1889, 11137)]