21273514640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{5426917}}^1$

素因数の和:5426944

約数の個数: 60

約数和(自身を含む): 57536184636

約数和(自身を除く): 36262669996

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 5426917, 10853834, 21707668, 27134585, 37988419, 43415336, 54269170, 75976838, 86830672, 108538340, 151953676, 189942095, 217076680, 265918933, 303907352, 379884190, 434153360, 531837866, 607814704, 759768380, 1063675732, 1329594665, 1519536760, 2127351464, 2659189330, 3039073520, 4254702928, 5318378660, 10636757320, 21273514640]

約数ペア:

[(1, 21273514640), (2, 10636757320), (4, 5318378660), (5, 4254702928), (7, 3039073520), (8, 2659189330), (10, 2127351464), (14, 1519536760), (16, 1329594665), (20, 1063675732), (28, 759768380), (35, 607814704), (40, 531837866), (49, 434153360), (56, 379884190), (70, 303907352), (80, 265918933), (98, 217076680), (112, 189942095), (140, 151953676), (196, 108538340), (245, 86830672), (280, 75976838), (392, 54269170), (490, 43415336), (560, 37988419), (784, 27134585), (980, 21707668), (1960, 10853834), (3920, 5426917)]