81135509

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 106686720

約数和(自身を除く): 25551211

約数列:

[1, 7, 13, 17, 91, 119, 179, 221, 293, 1253, 1547, 2051, 2327, 3043, 3809, 4981, 16289, 21301, 26663, 34867, 39559, 52447, 64753, 276913, 367129, 453271, 681811, 891599, 4772677, 6241193, 11590787, 81135509]

約数ペア:

[(1, 81135509), (7, 11590787), (13, 6241193), (17, 4772677), (91, 891599), (119, 681811), (179, 453271), (221, 367129), (293, 276913), (1253, 64753), (1547, 52447), (2051, 39559), (2327, 34867), (3043, 26663), (3809, 21301), (4981, 16289)]