81239787

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{467}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 128044800

約数和(自身を除く): 46805013

約数列:

[1, 3, 9, 17, 27, 51, 153, 379, 459, 467, 1137, 1401, 3411, 4203, 6443, 7939, 10233, 12609, 19329, 23817, 57987, 71451, 173961, 176993, 214353, 530979, 1592937, 3008881, 4778811, 9026643, 27079929, 81239787]

約数ペア:

[(1, 81239787), (3, 27079929), (9, 9026643), (17, 4778811), (27, 3008881), (51, 1592937), (153, 530979), (379, 214353), (459, 176993), (467, 173961), (1137, 71451), (1401, 57987), (3411, 23817), (4203, 19329), (6443, 12609), (7939, 10233)]