20887132

素因数分解:

$2^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1747}}^1$

素因数の和:1826

約数の個数: 36

約数和(自身を含む): 43242024

約数和(自身を除く): 22354892

約数列:

[1, 2, 4, 7, 14, 28, 49, 61, 98, 122, 196, 244, 427, 854, 1708, 1747, 2989, 3494, 5978, 6988, 11956, 12229, 24458, 48916, 85603, 106567, 171206, 213134, 342412, 426268, 745969, 1491938, 2983876, 5221783, 10443566, 20887132]

約数ペア:

[(1, 20887132), (2, 10443566), (4, 5221783), (7, 2983876), (14, 1491938), (28, 745969), (49, 426268), (61, 342412), (98, 213134), (122, 171206), (196, 106567), (244, 85603), (427, 48916), (854, 24458), (1708, 12229), (1747, 11956), (2989, 6988), (3494, 5978)]