20451968

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{6947}}^1$

素因数の和:6984

約数の個数: 32

約数和(自身を含む): 42521760

約数和(自身を除く): 22069792

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 368, 736, 1472, 2944, 6947, 13894, 27788, 55576, 111152, 159781, 222304, 319562, 444608, 639124, 889216, 1278248, 2556496, 5112992, 10225984, 20451968]

約数ペア:

[(1, 20451968), (2, 10225984), (4, 5112992), (8, 2556496), (16, 1278248), (23, 889216), (32, 639124), (46, 444608), (64, 319562), (92, 222304), (128, 159781), (184, 111152), (368, 55576), (736, 27788), (1472, 13894), (2944, 6947)]