20745604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{12743}}^1$

素因数の和:12795

約数の個数: 24

約数和(自身を含む): 40678848

約数和(自身を除く): 19933244

約数列:

[1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628, 12743, 25486, 50972, 140173, 280346, 471491, 560692, 942982, 1885964, 5186401, 10372802, 20745604]

約数ペア:

[(1, 20745604), (2, 10372802), (4, 5186401), (11, 1885964), (22, 942982), (37, 560692), (44, 471491), (74, 280346), (148, 140173), (407, 50972), (814, 25486), (1628, 12743)]