20870037

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 33047040

約数和(自身を除く): 12177003

約数列:

[1, 3, 9, 19, 31, 57, 93, 127, 171, 279, 381, 589, 961, 1143, 1767, 2413, 2883, 3937, 5301, 7239, 8649, 11811, 18259, 21717, 35433, 54777, 74803, 122047, 164331, 224409, 366141, 673227, 1098423, 2318893, 6956679, 20870037]

約数ペア:

[(1, 20870037), (3, 6956679), (9, 2318893), (19, 1098423), (31, 673227), (57, 366141), (93, 224409), (127, 164331), (171, 122047), (279, 74803), (381, 54777), (589, 35433), (961, 21717), (1143, 18259), (1767, 11811), (2413, 8649), (2883, 7239), (3937, 5301)]