21707924

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{5659}}^1$

素因数の和:5807

約数の個数: 24

約数和(自身を含む): 43740480

約数和(自身を除く): 22032556

約数列:

[1, 2, 4, 7, 14, 28, 137, 274, 548, 959, 1918, 3836, 5659, 11318, 22636, 39613, 79226, 158452, 775283, 1550566, 3101132, 5426981, 10853962, 21707924]

約数ペア:

[(1, 21707924), (2, 10853962), (4, 5426981), (7, 3101132), (14, 1550566), (28, 775283), (137, 158452), (274, 79226), (548, 39613), (959, 22636), (1918, 11318), (3836, 5659)]