20995744

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8521}}^1$

素因数の和:8549

約数の個数: 48

約数和(自身を含む): 51541056

約数和(自身を除く): 30545312

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8521, 17042, 34084, 59647, 68168, 93731, 119294, 136336, 187462, 238588, 272672, 374924, 477176, 656117, 749848, 954352, 1312234, 1499696, 1908704, 2624468, 2999392, 5248936, 10497872, 20995744]

約数ペア:

[(1, 20995744), (2, 10497872), (4, 5248936), (7, 2999392), (8, 2624468), (11, 1908704), (14, 1499696), (16, 1312234), (22, 954352), (28, 749848), (32, 656117), (44, 477176), (56, 374924), (77, 272672), (88, 238588), (112, 187462), (154, 136336), (176, 119294), (224, 93731), (308, 68168), (352, 59647), (616, 34084), (1232, 17042), (2464, 8521)]