221188887

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{191}}^1$

素因数の和:278

約数の個数: 60

約数和(自身を含む): 364231296

約数和(自身を除く): 143042409

約数列:

[1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 191, 261, 459, 493, 573, 783, 841, 1377, 1479, 1719, 2349, 2523, 3247, 4437, 5157, 5539, 7569, 9741, 13311, 14297, 15471, 16617, 22707, 29223, 39933, 42891, 49851, 68121, 87669, 94163, 128673, 149553, 160631, 263007, 282489, 386019, 448659, 481893, 847467, 1158057, 1445679, 2542401, 2730727, 4337037, 7627203, 8192181, 13011111, 24576543, 73729629, 221188887]

約数ペア:

[(1, 221188887), (3, 73729629), (9, 24576543), (17, 13011111), (27, 8192181), (29, 7627203), (51, 4337037), (81, 2730727), (87, 2542401), (153, 1445679), (191, 1158057), (261, 847467), (459, 481893), (493, 448659), (573, 386019), (783, 282489), (841, 263007), (1377, 160631), (1479, 149553), (1719, 128673), (2349, 94163), (2523, 87669), (3247, 68121), (4437, 49851), (5157, 42891), (5539, 39933), (7569, 29223), (9741, 22707), (13311, 16617), (14297, 15471)]