7898319

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:85

約数の個数: 72

約数和(自身を含む): 14977872

約数和(自身を除く): 7079553

約数列:

[1, 3, 9, 11, 13, 17, 19, 33, 39, 51, 57, 99, 117, 143, 153, 171, 187, 209, 221, 247, 323, 361, 429, 561, 627, 663, 741, 969, 1083, 1287, 1683, 1881, 1989, 2223, 2431, 2717, 2907, 3249, 3553, 3971, 4199, 4693, 6137, 7293, 8151, 10659, 11913, 12597, 14079, 18411, 21879, 24453, 31977, 35739, 37791, 42237, 46189, 51623, 55233, 67507, 79781, 138567, 154869, 202521, 239343, 415701, 464607, 607563, 718029, 877591, 2632773, 7898319]

約数ペア:

[(1, 7898319), (3, 2632773), (9, 877591), (11, 718029), (13, 607563), (17, 464607), (19, 415701), (33, 239343), (39, 202521), (51, 154869), (57, 138567), (99, 79781), (117, 67507), (143, 55233), (153, 51623), (171, 46189), (187, 42237), (209, 37791), (221, 35739), (247, 31977), (323, 24453), (361, 21879), (429, 18411), (561, 14079), (627, 12597), (663, 11913), (741, 10659), (969, 8151), (1083, 7293), (1287, 6137), (1683, 4693), (1881, 4199), (1989, 3971), (2223, 3553), (2431, 3249), (2717, 2907)]