21380604

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{359}}^1\times {\mathrm{709}}^1$

素因数の和:1082

約数の個数: 48

約数和(自身を含む): 57254400

約数和(自身を除く): 35873796

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 359, 709, 718, 1077, 1418, 1436, 2127, 2154, 2513, 2836, 4254, 4308, 4963, 5026, 7539, 8508, 9926, 10052, 14889, 15078, 19852, 29778, 30156, 59556, 254531, 509062, 763593, 1018124, 1527186, 1781717, 3054372, 3563434, 5345151, 7126868, 10690302, 21380604]

約数ペア:

[(1, 21380604), (2, 10690302), (3, 7126868), (4, 5345151), (6, 3563434), (7, 3054372), (12, 1781717), (14, 1527186), (21, 1018124), (28, 763593), (42, 509062), (84, 254531), (359, 59556), (709, 30156), (718, 29778), (1077, 19852), (1418, 15078), (1436, 14889), (2127, 10052), (2154, 9926), (2513, 8508), (2836, 7539), (4254, 5026), (4308, 4963)]