20554956

素因数分解:

$2^2\times 3^2\times {\mathrm{239}}^1\times {\mathrm{2389}}^1$

素因数の和:2638

約数の個数: 36

約数和(自身を含む): 52197600

約数和(自身を除く): 31642644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 239, 478, 717, 956, 1434, 2151, 2389, 2868, 4302, 4778, 7167, 8604, 9556, 14334, 21501, 28668, 43002, 86004, 570971, 1141942, 1712913, 2283884, 3425826, 5138739, 6851652, 10277478, 20554956]

約数ペア:

[(1, 20554956), (2, 10277478), (3, 6851652), (4, 5138739), (6, 3425826), (9, 2283884), (12, 1712913), (18, 1141942), (36, 570971), (239, 86004), (478, 43002), (717, 28668), (956, 21501), (1434, 14334), (2151, 9556), (2389, 8604), (2868, 7167), (4302, 4778)]