20489392

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16631}}^1$

素因数の和:16657

約数の個数: 40

約数和(自身を含む): 49496832

約数和(自身を除く): 29007440

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16631, 33262, 66524, 116417, 133048, 182941, 232834, 266096, 365882, 465668, 731764, 931336, 1280587, 1463528, 1862672, 2561174, 2927056, 5122348, 10244696, 20489392]

約数ペア:

[(1, 20489392), (2, 10244696), (4, 5122348), (7, 2927056), (8, 2561174), (11, 1862672), (14, 1463528), (16, 1280587), (22, 931336), (28, 731764), (44, 465668), (56, 365882), (77, 266096), (88, 232834), (112, 182941), (154, 133048), (176, 116417), (308, 66524), (616, 33262), (1232, 16631)]