81868131

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5503}}^1$

素因数の和:5560

約数の個数: 32

約数和(自身を含む): 132096000

約数和(自身を除く): 50227869

約数列:

[1, 3, 9, 19, 27, 29, 57, 87, 171, 261, 513, 551, 783, 1653, 4959, 5503, 14877, 16509, 49527, 104557, 148581, 159587, 313671, 478761, 941013, 1436283, 2823039, 3032153, 4308849, 9096459, 27289377, 81868131]

約数ペア:

[(1, 81868131), (3, 27289377), (9, 9096459), (19, 4308849), (27, 3032153), (29, 2823039), (57, 1436283), (87, 941013), (171, 478761), (261, 313671), (513, 159587), (551, 148581), (783, 104557), (1653, 49527), (4959, 16509), (5503, 14877)]