20745153

素因数分解:

$3^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 56

約数和(自身を含む): 36724800

約数和(自身を除く): 15979647

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 199, 243, 297, 351, 429, 597, 729, 891, 1053, 1287, 1791, 2189, 2587, 2673, 3159, 3861, 5373, 6567, 7761, 8019, 9477, 11583, 16119, 19701, 23283, 28457, 34749, 48357, 59103, 69849, 85371, 104247, 145071, 177309, 209547, 256113, 531927, 628641, 768339, 1595781, 1885923, 2305017, 6915051, 20745153]

約数ペア:

[(1, 20745153), (3, 6915051), (9, 2305017), (11, 1885923), (13, 1595781), (27, 768339), (33, 628641), (39, 531927), (81, 256113), (99, 209547), (117, 177309), (143, 145071), (199, 104247), (243, 85371), (297, 69849), (351, 59103), (429, 48357), (597, 34749), (729, 28457), (891, 23283), (1053, 19701), (1287, 16119), (1791, 11583), (2189, 9477), (2587, 8019), (2673, 7761), (3159, 6567), (3861, 5373)]