18418455

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 36403200

約数和(自身を除く): 17984745

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 79, 99, 135, 157, 165, 237, 297, 395, 471, 495, 711, 785, 869, 1185, 1413, 1485, 1727, 2133, 2355, 2607, 3555, 4239, 4345, 5181, 7065, 7821, 8635, 10665, 12403, 13035, 15543, 21195, 23463, 25905, 37209, 39105, 46629, 62015, 77715, 111627, 117315, 136433, 186045, 233145, 334881, 409299, 558135, 682165, 1227897, 1674405, 2046495, 3683691, 6139485, 18418455]

約数ペア:

[(1, 18418455), (3, 6139485), (5, 3683691), (9, 2046495), (11, 1674405), (15, 1227897), (27, 682165), (33, 558135), (45, 409299), (55, 334881), (79, 233145), (99, 186045), (135, 136433), (157, 117315), (165, 111627), (237, 77715), (297, 62015), (395, 46629), (471, 39105), (495, 37209), (711, 25905), (785, 23463), (869, 21195), (1185, 15543), (1413, 13035), (1485, 12403), (1727, 10665), (2133, 8635), (2355, 7821), (2607, 7065), (3555, 5181), (4239, 4345)]