20731428

素因数分解:

$2^2\times 3^2\times {\mathrm{103}}^1\times {\mathrm{5591}}^1$

素因数の和:5704

約数の個数: 36

約数和(自身を含む): 52922688

約数和(自身を除く): 32191260

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 103, 206, 309, 412, 618, 927, 1236, 1854, 3708, 5591, 11182, 16773, 22364, 33546, 50319, 67092, 100638, 201276, 575873, 1151746, 1727619, 2303492, 3455238, 5182857, 6910476, 10365714, 20731428]

約数ペア:

[(1, 20731428), (2, 10365714), (3, 6910476), (4, 5182857), (6, 3455238), (9, 2303492), (12, 1727619), (18, 1151746), (36, 575873), (103, 201276), (206, 100638), (309, 67092), (412, 50319), (618, 33546), (927, 22364), (1236, 16773), (1854, 11182), (3708, 5591)]