12841257

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 20684160

約数和(自身を除く): 7842903

約数列:

[1, 3, 11, 13, 33, 37, 39, 111, 143, 407, 429, 481, 809, 1221, 1443, 2427, 5291, 8899, 10517, 15873, 26697, 29933, 31551, 89799, 115687, 329263, 347061, 389129, 987789, 1167387, 4280419, 12841257]

約数ペア:

[(1, 12841257), (3, 4280419), (11, 1167387), (13, 987789), (33, 389129), (37, 347061), (39, 329263), (111, 115687), (143, 89799), (407, 31551), (429, 29933), (481, 26697), (809, 15873), (1221, 10517), (1443, 8899), (2427, 5291)]