6666891

素因数分解:

$3^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 64

約数和(自身を含む): 12288000

約数和(自身を除く): 5621109

約数列:

[1, 3, 7, 11, 19, 21, 31, 33, 49, 57, 77, 93, 133, 147, 209, 217, 231, 341, 343, 399, 539, 589, 627, 651, 931, 1023, 1029, 1463, 1519, 1617, 1767, 2387, 2793, 3773, 4123, 4389, 4557, 6479, 6517, 7161, 10241, 10633, 11319, 12369, 16709, 19437, 19551, 28861, 30723, 31899, 45353, 50127, 71687, 86583, 116963, 136059, 202027, 215061, 317471, 350889, 606081, 952413, 2222297, 6666891]

約数ペア:

[(1, 6666891), (3, 2222297), (7, 952413), (11, 606081), (19, 350889), (21, 317471), (31, 215061), (33, 202027), (49, 136059), (57, 116963), (77, 86583), (93, 71687), (133, 50127), (147, 45353), (209, 31899), (217, 30723), (231, 28861), (341, 19551), (343, 19437), (399, 16709), (539, 12369), (589, 11319), (627, 10633), (651, 10241), (931, 7161), (1023, 6517), (1029, 6479), (1463, 4557), (1519, 4389), (1617, 4123), (1767, 3773), (2387, 2793)]