21814784

素因数分解:

$2^9\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:466

約数の個数: 40

約数和(自身を含む): 44046288

約数和(自身を除く): 22231504

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 311, 512, 548, 622, 1096, 1244, 2192, 2488, 4384, 4976, 8768, 9952, 17536, 19904, 35072, 39808, 42607, 70144, 79616, 85214, 159232, 170428, 340856, 681712, 1363424, 2726848, 5453696, 10907392, 21814784]

約数ペア:

[(1, 21814784), (2, 10907392), (4, 5453696), (8, 2726848), (16, 1363424), (32, 681712), (64, 340856), (128, 170428), (137, 159232), (256, 85214), (274, 79616), (311, 70144), (512, 42607), (548, 39808), (622, 35072), (1096, 19904), (1244, 17536), (2192, 9952), (2488, 8768), (4384, 4976)]