61561143

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 105131520

約数和(自身を除く): 43570377

約数列:

[1, 3, 7, 9, 21, 53, 63, 103, 159, 179, 309, 371, 477, 537, 721, 927, 1113, 1253, 1611, 2163, 3339, 3759, 5459, 6489, 9487, 11277, 16377, 18437, 28461, 38213, 49131, 55311, 66409, 85383, 114639, 129059, 165933, 199227, 343917, 387177, 597681, 977161, 1161531, 2931483, 6840127, 8794449, 20520381, 61561143]

約数ペア:

[(1, 61561143), (3, 20520381), (7, 8794449), (9, 6840127), (21, 2931483), (53, 1161531), (63, 977161), (103, 597681), (159, 387177), (179, 343917), (309, 199227), (371, 165933), (477, 129059), (537, 114639), (721, 85383), (927, 66409), (1113, 55311), (1253, 49131), (1611, 38213), (2163, 28461), (3339, 18437), (3759, 16377), (5459, 11277), (6489, 9487)]