199957779

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{11059}}^1$

素因数の和:11120

約数の個数: 36

約数和(自身を含む): 344209320

約数和(自身を除く): 144251541

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 2009, 2583, 6027, 11059, 18081, 33177, 77413, 99531, 232239, 453419, 541891, 696717, 1360257, 1625673, 3173933, 4080771, 4877019, 9521799, 22217531, 28565397, 66652593, 199957779]

約数ペア:

[(1, 199957779), (3, 66652593), (7, 28565397), (9, 22217531), (21, 9521799), (41, 4877019), (49, 4080771), (63, 3173933), (123, 1625673), (147, 1360257), (287, 696717), (369, 541891), (441, 453419), (861, 232239), (2009, 99531), (2583, 77413), (6027, 33177), (11059, 18081)]