20677719

素因数分解:

$3^1\times {\mathrm{19}}^2\times {\mathrm{61}}^1\times {\mathrm{313}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 29669232

約数和(自身を除く): 8991513

約数列:

[1, 3, 19, 57, 61, 183, 313, 361, 939, 1083, 1159, 3477, 5947, 17841, 19093, 22021, 57279, 66063, 112993, 338979, 362767, 1088301, 6892573, 20677719]

約数ペア:

[(1, 20677719), (3, 6892573), (19, 1088301), (57, 362767), (61, 338979), (183, 112993), (313, 66063), (361, 57279), (939, 22021), (1083, 19093), (1159, 17841), (3477, 5947)]