138865509

素因数分解:

$3^5\times {\mathrm{19}}^2\times {\mathrm{1583}}^1$

素因数の和:1636

約数の個数: 36

約数和(自身を含む): 219675456

約数和(自身を除く): 80809947

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 361, 513, 1083, 1539, 1583, 3249, 4617, 4749, 9747, 14247, 29241, 30077, 42741, 87723, 90231, 128223, 270693, 384669, 571463, 812079, 1714389, 2436237, 5143167, 7308711, 15429501, 46288503, 138865509]

約数ペア:

[(1, 138865509), (3, 46288503), (9, 15429501), (19, 7308711), (27, 5143167), (57, 2436237), (81, 1714389), (171, 812079), (243, 571463), (361, 384669), (513, 270693), (1083, 128223), (1539, 90231), (1583, 87723), (3249, 42741), (4617, 30077), (4749, 29241), (9747, 14247)]