21347876979

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{69403}}^1$

素因数の和:69672

約数の個数: 48

約数和(自身を含む): 36378800640

約数和(自身を除く): 15030923661

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 239, 429, 717, 1287, 2151, 2629, 3107, 7887, 9321, 23661, 27963, 34177, 69403, 102531, 208209, 307593, 624627, 763433, 902239, 2290299, 2706717, 6870897, 8120151, 9924629, 16587317, 29773887, 49761951, 89321661, 149285853, 182460487, 215635121, 547381461, 646905363, 1642144383, 1940716089, 2371986331, 7115958993, 21347876979]

約数ペア:

[(1, 21347876979), (3, 7115958993), (9, 2371986331), (11, 1940716089), (13, 1642144383), (33, 646905363), (39, 547381461), (99, 215635121), (117, 182460487), (143, 149285853), (239, 89321661), (429, 49761951), (717, 29773887), (1287, 16587317), (2151, 9924629), (2629, 8120151), (3107, 6870897), (7887, 2706717), (9321, 2290299), (23661, 902239), (27963, 763433), (34177, 624627), (69403, 307593), (102531, 208209)]