12642189

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 19998720

約数和(自身を除く): 7356531

約数列:

[1, 3, 7, 21, 61, 71, 139, 183, 213, 417, 427, 497, 973, 1281, 1491, 2919, 4331, 8479, 9869, 12993, 25437, 29607, 30317, 59353, 69083, 90951, 178059, 207249, 602009, 1806027, 4214063, 12642189]

約数ペア:

[(1, 12642189), (3, 4214063), (7, 1806027), (21, 602009), (61, 207249), (71, 178059), (139, 90951), (183, 69083), (213, 59353), (417, 30317), (427, 29607), (497, 25437), (973, 12993), (1281, 9869), (1491, 8479), (2919, 4331)]