12987729

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:362

約数の個数: 32

約数和(自身を含む): 20275200

約数和(自身を除く): 7287471

約数列:

[1, 3, 9, 27, 31, 59, 93, 177, 263, 279, 531, 789, 837, 1593, 1829, 2367, 5487, 7101, 8153, 15517, 16461, 24459, 46551, 49383, 73377, 139653, 220131, 418959, 481027, 1443081, 4329243, 12987729]

約数ペア:

[(1, 12987729), (3, 4329243), (9, 1443081), (27, 481027), (31, 418959), (59, 220131), (93, 139653), (177, 73377), (263, 49383), (279, 46551), (531, 24459), (789, 16461), (837, 15517), (1593, 8153), (1829, 7101), (2367, 5487)]