21048888

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{359}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 60480000

約数和(自身を除く): 39431112

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 168, 349, 359, 698, 718, 1047, 1077, 1396, 1436, 2094, 2154, 2443, 2513, 2792, 2872, 4188, 4308, 4886, 5026, 7329, 7539, 8376, 8616, 9772, 10052, 14658, 15078, 19544, 20104, 29316, 30156, 58632, 60312, 125291, 250582, 375873, 501164, 751746, 877037, 1002328, 1503492, 1754074, 2631111, 3006984, 3508148, 5262222, 7016296, 10524444, 21048888]

約数ペア:

[(1, 21048888), (2, 10524444), (3, 7016296), (4, 5262222), (6, 3508148), (7, 3006984), (8, 2631111), (12, 1754074), (14, 1503492), (21, 1002328), (24, 877037), (28, 751746), (42, 501164), (56, 375873), (84, 250582), (168, 125291), (349, 60312), (359, 58632), (698, 30156), (718, 29316), (1047, 20104), (1077, 19544), (1396, 15078), (1436, 14658), (2094, 10052), (2154, 9772), (2443, 8616), (2513, 8376), (2792, 7539), (2872, 7329), (4188, 5026), (4308, 4886)]