200921805

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{91121}}^1$

素因数の和:91146

約数の個数: 36

約数和(自身を含む): 405128412

約数和(自身を除く): 204206607

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 91121, 273363, 455605, 637847, 820089, 1366815, 1913541, 3189235, 4100445, 4464929, 5740623, 9567705, 13394787, 22324645, 28703115, 40184361, 66973935, 200921805]

約数ペア:

[(1, 200921805), (3, 66973935), (5, 40184361), (7, 28703115), (9, 22324645), (15, 13394787), (21, 9567705), (35, 5740623), (45, 4464929), (49, 4100445), (63, 3189235), (105, 1913541), (147, 1366815), (245, 820089), (315, 637847), (441, 455605), (735, 273363), (2205, 91121)]