221821312653

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1\times {\mathrm{80783}}^1$

素因数の和:81074

約数の個数: 48

約数和(自身を含む): 344345354496

約数和(自身を除く): 122524041843

約数列:

[1, 3, 9, 17, 51, 131, 137, 153, 393, 411, 1179, 1233, 2227, 2329, 6681, 6987, 17947, 20043, 20961, 53841, 80783, 161523, 242349, 305099, 727047, 915297, 1373311, 2745891, 4119933, 10582573, 11067271, 12359799, 31747719, 33201813, 95243157, 99605439, 179903741, 188143607, 539711223, 564430821, 1449812501, 1619133669, 1693292463, 4349437503, 13048312509, 24646812517, 73940437551, 221821312653]

約数ペア:

[(1, 221821312653), (3, 73940437551), (9, 24646812517), (17, 13048312509), (51, 4349437503), (131, 1693292463), (137, 1619133669), (153, 1449812501), (393, 564430821), (411, 539711223), (1179, 188143607), (1233, 179903741), (2227, 99605439), (2329, 95243157), (6681, 33201813), (6987, 31747719), (17947, 12359799), (20043, 11067271), (20961, 10582573), (53841, 4119933), (80783, 2745891), (161523, 1373311), (242349, 915297), (305099, 727047)]