205820979

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1\times {\mathrm{2683}}^1$

素因数の和:2987

約数の個数: 32

約数和(自身を含む): 339085824

約数和(自身を除く): 133264845

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 281, 843, 1967, 2683, 3653, 5901, 8049, 10959, 18781, 25571, 34879, 56343, 76713, 104637, 244153, 732459, 753923, 2261769, 5277461, 9800999, 15832383, 29402997, 68606993, 205820979]

約数ペア:

[(1, 205820979), (3, 68606993), (7, 29402997), (13, 15832383), (21, 9800999), (39, 5277461), (91, 2261769), (273, 753923), (281, 732459), (843, 244153), (1967, 104637), (2683, 76713), (3653, 56343), (5901, 34879), (8049, 25571), (10959, 18781)]