21943229

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{3701}}^1$

素因数の和:3737

約数の個数: 18

約数和(自身を含む): 28064862

約数和(自身を除く): 6121633

約数列:

[1, 7, 11, 49, 77, 121, 539, 847, 3701, 5929, 25907, 40711, 181349, 284977, 447821, 1994839, 3134747, 21943229]

約数ペア:

[(1, 21943229), (7, 3134747), (11, 1994839), (49, 447821), (77, 284977), (121, 181349), (539, 40711), (847, 25907), (3701, 5929)]