81955827

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 136857600

約数和(自身を除く): 54901773

約数列:

[1, 3, 9, 17, 27, 29, 47, 51, 87, 131, 141, 153, 261, 393, 423, 459, 493, 783, 799, 1179, 1269, 1363, 1479, 2227, 2397, 3537, 3799, 4089, 4437, 6157, 6681, 7191, 11397, 12267, 13311, 18471, 20043, 21573, 23171, 34191, 36801, 55413, 60129, 64583, 69513, 102573, 104669, 166239, 178553, 193749, 208539, 314007, 535659, 581247, 625617, 942021, 1606977, 1743741, 2826063, 3035401, 4820931, 9106203, 27318609, 81955827]

約数ペア:

[(1, 81955827), (3, 27318609), (9, 9106203), (17, 4820931), (27, 3035401), (29, 2826063), (47, 1743741), (51, 1606977), (87, 942021), (131, 625617), (141, 581247), (153, 535659), (261, 314007), (393, 208539), (423, 193749), (459, 178553), (493, 166239), (783, 104669), (799, 102573), (1179, 69513), (1269, 64583), (1363, 60129), (1479, 55413), (2227, 36801), (2397, 34191), (3537, 23171), (3799, 21573), (4089, 20043), (4437, 18471), (6157, 13311), (6681, 12267), (7191, 11397)]