81993989

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{4691}}^1$

素因数の和:4936

約数の個数: 16

約数和(自身を含む): 102698496

約数和(自身を除く): 20704507

約数列:

[1, 7, 11, 77, 227, 1589, 2497, 4691, 17479, 32837, 51601, 361207, 1064857, 7453999, 11713427, 81993989]

約数ペア:

[(1, 81993989), (7, 11713427), (11, 7453999), (77, 1064857), (227, 361207), (1589, 51601), (2497, 32837), (4691, 17479)]