21789404

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 48470016

約数和(自身を除く): 26680612

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 52, 62, 91, 124, 182, 217, 364, 403, 434, 806, 868, 1612, 1931, 2821, 3862, 5642, 7724, 11284, 13517, 25103, 27034, 50206, 54068, 59861, 100412, 119722, 175721, 239444, 351442, 419027, 702884, 778193, 838054, 1556386, 1676108, 3112772, 5447351, 10894702, 21789404]

約数ペア:

[(1, 21789404), (2, 10894702), (4, 5447351), (7, 3112772), (13, 1676108), (14, 1556386), (26, 838054), (28, 778193), (31, 702884), (52, 419027), (62, 351442), (91, 239444), (124, 175721), (182, 119722), (217, 100412), (364, 59861), (403, 54068), (434, 50206), (806, 27034), (868, 25103), (1612, 13517), (1931, 11284), (2821, 7724), (3862, 5642)]