68943381

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 111205440

約数和(自身を除く): 42262059

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 169, 221, 247, 323, 421, 507, 663, 741, 969, 1263, 2873, 3211, 4199, 5473, 7157, 7999, 8619, 9633, 12597, 16419, 21471, 23997, 54587, 71149, 93041, 103987, 135983, 163761, 213447, 279123, 311961, 407949, 1209533, 1351831, 1767779, 3628599, 4055493, 5303337, 22981127, 68943381]

約数ペア:

[(1, 68943381), (3, 22981127), (13, 5303337), (17, 4055493), (19, 3628599), (39, 1767779), (51, 1351831), (57, 1209533), (169, 407949), (221, 311961), (247, 279123), (323, 213447), (421, 163761), (507, 135983), (663, 103987), (741, 93041), (969, 71149), (1263, 54587), (2873, 23997), (3211, 21471), (4199, 16419), (5473, 12597), (7157, 9633), (7999, 8619)]