20565576003

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1\times {\mathrm{77977}}^1$

素因数の和:78667

約数の個数: 32

約数和(自身を含む): 33037719040

約数和(自身を除く): 12472143037

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 661, 1983, 4627, 12559, 13881, 37677, 77977, 87913, 233931, 263739, 545839, 1481563, 1637517, 4444689, 10370941, 31112823, 51542797, 154628391, 360799579, 979313143, 1082398737, 2937939429, 6855192001, 20565576003]

約数ペア:

[(1, 20565576003), (3, 6855192001), (7, 2937939429), (19, 1082398737), (21, 979313143), (57, 360799579), (133, 154628391), (399, 51542797), (661, 31112823), (1983, 10370941), (4627, 4444689), (12559, 1637517), (13881, 1481563), (37677, 545839), (77977, 263739), (87913, 233931)]