20857575681

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{1667}}^1\times {\mathrm{2843}}^1$

素因数の和:4682

約数の個数: 32

約数和(自身を含む): 31119275520

約数和(自身を除く): 10261699839

約数列:

[1, 3, 9, 27, 163, 489, 1467, 1667, 2843, 4401, 5001, 8529, 15003, 25587, 45009, 76761, 271721, 463409, 815163, 1390227, 2445489, 4170681, 4739281, 7336467, 12512043, 14217843, 42653529, 127960587, 772502803, 2317508409, 6952525227, 20857575681]

約数ペア:

[(1, 20857575681), (3, 6952525227), (9, 2317508409), (27, 772502803), (163, 127960587), (489, 42653529), (1467, 14217843), (1667, 12512043), (2843, 7336467), (4401, 4739281), (5001, 4170681), (8529, 2445489), (15003, 1390227), (25587, 815163), (45009, 463409), (76761, 271721)]