20853644

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20129}}^1$

素因数の和:20177

約数の個数: 24

約数和(自身を含む): 42836640

約数和(自身を除く): 21982996

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20129, 40258, 80516, 140903, 281806, 563612, 744773, 1489546, 2979092, 5213411, 10426822, 20853644]

約数ペア:

[(1, 20853644), (2, 10426822), (4, 5213411), (7, 2979092), (14, 1489546), (28, 744773), (37, 563612), (74, 281806), (148, 140903), (259, 80516), (518, 40258), (1036, 20129)]