19796504

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:480

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26652136

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 71, 91, 104, 142, 182, 284, 364, 383, 497, 568, 728, 766, 923, 994, 1532, 1846, 1988, 2681, 3064, 3692, 3976, 4979, 5362, 6461, 7384, 9958, 10724, 12922, 19916, 21448, 25844, 27193, 34853, 39832, 51688, 54386, 69706, 108772, 139412, 190351, 217544, 278824, 353509, 380702, 707018, 761404, 1414036, 1522808, 2474563, 2828072, 4949126, 9898252, 19796504]

約数ペア:

[(1, 19796504), (2, 9898252), (4, 4949126), (7, 2828072), (8, 2474563), (13, 1522808), (14, 1414036), (26, 761404), (28, 707018), (52, 380702), (56, 353509), (71, 278824), (91, 217544), (104, 190351), (142, 139412), (182, 108772), (284, 69706), (364, 54386), (383, 51688), (497, 39832), (568, 34853), (728, 27193), (766, 25844), (923, 21448), (994, 19916), (1532, 12922), (1846, 10724), (1988, 9958), (2681, 7384), (3064, 6461), (3692, 5362), (3976, 4979)]