20951907

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{313}}^1\times {\mathrm{421}}^1$

素因数の和:790

約数の個数: 16

約数和(自身を含む): 28621728

約数和(自身を除く): 7669821

約数列:

[1, 3, 53, 159, 313, 421, 939, 1263, 16589, 22313, 49767, 66939, 131773, 395319, 6983969, 20951907]

約数ペア:

[(1, 20951907), (3, 6983969), (53, 395319), (159, 131773), (313, 66939), (421, 49767), (939, 22313), (1263, 16589)]