19913011209

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1\times {\mathrm{15881}}^1$

素因数の和:17438

約数の個数: 48

約数和(自身を含む): 35426262144

約数和(自身を除く): 15513250935

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 1531, 4593, 10717, 13779, 15881, 19903, 32151, 47643, 59709, 96453, 111167, 139321, 142929, 179127, 206453, 333501, 417963, 619359, 1000503, 1253889, 1445171, 1858077, 4335513, 13006539, 24313811, 72941433, 170196677, 218824299, 316079543, 510590031, 948238629, 1531770093, 2212556801, 2844715887, 6637670403, 19913011209]

約数ペア:

[(1, 19913011209), (3, 6637670403), (7, 2844715887), (9, 2212556801), (13, 1531770093), (21, 948238629), (39, 510590031), (63, 316079543), (91, 218824299), (117, 170196677), (273, 72941433), (819, 24313811), (1531, 13006539), (4593, 4335513), (10717, 1858077), (13779, 1445171), (15881, 1253889), (19903, 1000503), (32151, 619359), (47643, 417963), (59709, 333501), (96453, 206453), (111167, 179127), (139321, 142929)]