20392047

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 33818400

約数和(自身を除く): 13426353

約数列:

[1, 3, 9, 13, 27, 39, 41, 109, 117, 123, 169, 327, 351, 369, 507, 533, 981, 1107, 1417, 1521, 1599, 2943, 4251, 4469, 4563, 4797, 6929, 12753, 13407, 14391, 18421, 20787, 38259, 40221, 55263, 58097, 62361, 120663, 165789, 174291, 187083, 497367, 522873, 755261, 1568619, 2265783, 6797349, 20392047]

約数ペア:

[(1, 20392047), (3, 6797349), (9, 2265783), (13, 1568619), (27, 755261), (39, 522873), (41, 497367), (109, 187083), (117, 174291), (123, 165789), (169, 120663), (327, 62361), (351, 58097), (369, 55263), (507, 40221), (533, 38259), (981, 20787), (1107, 18421), (1417, 14391), (1521, 13407), (1599, 12753), (2943, 6929), (4251, 4797), (4469, 4563)]