20793486

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 50872320

約数和(自身を除く): 30078834

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 71, 114, 133, 142, 213, 266, 367, 399, 426, 497, 734, 798, 994, 1101, 1349, 1491, 2202, 2569, 2698, 2982, 4047, 5138, 6973, 7707, 8094, 9443, 13946, 15414, 18886, 20919, 26057, 28329, 41838, 48811, 52114, 56658, 78171, 97622, 146433, 156342, 182399, 292866, 364798, 495083, 547197, 990166, 1094394, 1485249, 2970498, 3465581, 6931162, 10396743, 20793486]

約数ペア:

[(1, 20793486), (2, 10396743), (3, 6931162), (6, 3465581), (7, 2970498), (14, 1485249), (19, 1094394), (21, 990166), (38, 547197), (42, 495083), (57, 364798), (71, 292866), (114, 182399), (133, 156342), (142, 146433), (213, 97622), (266, 78171), (367, 56658), (399, 52114), (426, 48811), (497, 41838), (734, 28329), (798, 26057), (994, 20919), (1101, 18886), (1349, 15414), (1491, 13946), (2202, 9443), (2569, 8094), (2698, 7707), (2982, 6973), (4047, 5138)]