81687213

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{541}}^1\times {\mathrm{883}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 124573280

約数和(自身を除く): 42886067

約数列:

[1, 3, 9, 19, 57, 171, 541, 883, 1623, 2649, 4869, 7947, 10279, 16777, 30837, 50331, 92511, 150993, 477703, 1433109, 4299327, 9076357, 27229071, 81687213]

約数ペア:

[(1, 81687213), (3, 27229071), (9, 9076357), (19, 4299327), (57, 1433109), (171, 477703), (541, 150993), (883, 92511), (1623, 50331), (2649, 30837), (4869, 16777), (7947, 10279)]