21879051

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1$

素因数の和:443

約数の個数: 32

約数和(自身を含む): 33096960

約数和(自身を除く): 11217909

約数列:

[1, 3, 17, 19, 51, 57, 67, 201, 323, 337, 969, 1011, 1139, 1273, 3417, 3819, 5729, 6403, 17187, 19209, 21641, 22579, 64923, 67737, 108851, 326553, 383843, 429001, 1151529, 1287003, 7293017, 21879051]

約数ペア:

[(1, 21879051), (3, 7293017), (17, 1287003), (19, 1151529), (51, 429001), (57, 383843), (67, 326553), (201, 108851), (323, 67737), (337, 64923), (969, 22579), (1011, 21641), (1139, 19209), (1273, 17187), (3417, 6403), (3819, 5729)]