81306909

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2297}}^1$

素因数の和:2351

約数の個数: 40

約数和(自身を含む): 133467840

約数和(自身を除く): 52160931

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 437, 513, 621, 1311, 1539, 1863, 2297, 3933, 6891, 11799, 20673, 35397, 43643, 52831, 62019, 130929, 158493, 186057, 392787, 475479, 1003789, 1178361, 1426437, 3011367, 3535083, 4279311, 9034101, 27102303, 81306909]

約数ペア:

[(1, 81306909), (3, 27102303), (9, 9034101), (19, 4279311), (23, 3535083), (27, 3011367), (57, 1426437), (69, 1178361), (81, 1003789), (171, 475479), (207, 392787), (437, 186057), (513, 158493), (621, 130929), (1311, 62019), (1539, 52831), (1863, 43643), (2297, 35397), (3933, 20673), (6891, 11799)]