20153884

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:637

約数の個数: 24

約数和(自身を含む): 36001280

約数和(自身を除く): 15847396

約数列:

[1, 2, 4, 97, 127, 194, 254, 388, 409, 508, 818, 1636, 12319, 24638, 39673, 49276, 51943, 79346, 103886, 158692, 207772, 5038471, 10076942, 20153884]

約数ペア:

[(1, 20153884), (2, 10076942), (4, 5038471), (97, 207772), (127, 158692), (194, 103886), (254, 79346), (388, 51943), (409, 49276), (508, 39673), (818, 24638), (1636, 12319)]