19791807

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{181}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 31309824

約数和(自身を除く): 11518017

約数列:

[1, 3, 7, 21, 41, 123, 127, 181, 287, 381, 543, 861, 889, 1267, 2667, 3801, 5207, 7421, 15621, 22263, 22987, 36449, 51947, 68961, 109347, 155841, 160909, 482727, 942467, 2827401, 6597269, 19791807]

約数ペア:

[(1, 19791807), (3, 6597269), (7, 2827401), (21, 942467), (41, 482727), (123, 160909), (127, 155841), (181, 109347), (287, 68961), (381, 51947), (543, 36449), (861, 22987), (889, 22263), (1267, 15621), (2667, 7421), (3801, 5207)]