12978243

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{257}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 19533696

約数和(自身を除く): 6555453

約数列:

[1, 3, 9, 31, 93, 181, 257, 279, 543, 771, 1629, 2313, 5611, 7967, 16833, 23901, 46517, 50499, 71703, 139551, 418653, 1442027, 4326081, 12978243]

約数ペア:

[(1, 12978243), (3, 4326081), (9, 1442027), (31, 418653), (93, 139551), (181, 71703), (257, 50499), (279, 46517), (543, 23901), (771, 16833), (1629, 7967), (2313, 5611)]