209219031

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{11903}}^1$

素因数の和:11953

約数の個数: 40

約数和(自身を含む): 368738304

約数和(自身を除く): 159519273

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 189, 217, 279, 567, 651, 837, 1953, 2511, 5859, 11903, 17577, 35709, 83321, 107127, 249963, 321381, 368993, 749889, 964143, 1106979, 2249667, 2582951, 3320937, 6749001, 7748853, 9962811, 23246559, 29888433, 69739677, 209219031]

約数ペア:

[(1, 209219031), (3, 69739677), (7, 29888433), (9, 23246559), (21, 9962811), (27, 7748853), (31, 6749001), (63, 3320937), (81, 2582951), (93, 2249667), (189, 1106979), (217, 964143), (279, 749889), (567, 368993), (651, 321381), (837, 249963), (1953, 107127), (2511, 83321), (5859, 35709), (11903, 17577)]