20041827

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 33707520

約数和(自身を除く): 13665693

約数列:

[1, 3, 13, 17, 19, 37, 39, 43, 51, 57, 111, 129, 221, 247, 323, 481, 559, 629, 663, 703, 731, 741, 817, 969, 1443, 1591, 1677, 1887, 2109, 2193, 2451, 4199, 4773, 8177, 9139, 9503, 10621, 11951, 12597, 13889, 20683, 24531, 27047, 27417, 28509, 30229, 31863, 35853, 41667, 62049, 81141, 90687, 155363, 180557, 351611, 392977, 466089, 513893, 541671, 1054833, 1178931, 1541679, 6680609, 20041827]

約数ペア:

[(1, 20041827), (3, 6680609), (13, 1541679), (17, 1178931), (19, 1054833), (37, 541671), (39, 513893), (43, 466089), (51, 392977), (57, 351611), (111, 180557), (129, 155363), (221, 90687), (247, 81141), (323, 62049), (481, 41667), (559, 35853), (629, 31863), (663, 30229), (703, 28509), (731, 27417), (741, 27047), (817, 24531), (969, 20683), (1443, 13889), (1591, 12597), (1677, 11951), (1887, 10621), (2109, 9503), (2193, 9139), (2451, 8177), (4199, 4773)]