20529972

素因数分解:

$2^2\times 3^2\times {\mathrm{487}}^1\times {\mathrm{1171}}^1$

素因数の和:1668

約数の個数: 36

約数和(自身を含む): 52046176

約数和(自身を除く): 31516204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 487, 974, 1171, 1461, 1948, 2342, 2922, 3513, 4383, 4684, 5844, 7026, 8766, 10539, 14052, 17532, 21078, 42156, 570277, 1140554, 1710831, 2281108, 3421662, 5132493, 6843324, 10264986, 20529972]

約数ペア:

[(1, 20529972), (2, 10264986), (3, 6843324), (4, 5132493), (6, 3421662), (9, 2281108), (12, 1710831), (18, 1140554), (36, 570277), (487, 42156), (974, 21078), (1171, 17532), (1461, 14052), (1948, 10539), (2342, 8766), (2922, 7026), (3513, 5844), (4383, 4684)]